Some organisms that normally live in pond water contain water pumps. These pumps continually pump water out of the cell. Describe a scenario that might reverse the action of the pump.

Answers

Answer 1

In order to reverse the action of the pump we will have to stop the pumping of the water out of the cell. We need to clog the pump so it can no longer pump out water. This will force the water to go back into the cell slowly but surely and reverse its course.

Answer 2

Final answer:

A scenario that might reverse the action of a water pump in an organism living in pond water is placing it in a hypertonic environment, where water would move out of the cell by osmosis instead of into it.

Explanation:

Organisms that live in a hypotonic environment, such as freshwater, have adaptations to prevent their cells from taking in too much water by osmosis. One such adaptation is the presence of a contractile vacuole. In a scenario that might reverse the action of the pump, the organism could be placed in a hypertonic environment, such as a solution with a higher solute concentration than its cytoplasm. In this case, water would move out of the cell by osmosis instead of into it, and the pump would not need to expel excess water.

Related Questions

Why were you able to see the dna after adding ethanol? what chemical process led to the visible masses of dna?

Answers

The chemical process is called precipitation.

Usually, a combination of salt and ethanol are added to a solution in order to allow the DNA to precipitate or come out of solution.

Polar molecules are those with uneven distribution of charges in their structure, which gives them partial positive and partial negative parts in their structure. In general, the rule in solubility is "like dissolves like," which means that polar or charged solutes can dissolve in a polar solvent. Ionic and polar solutes which are "attracted" to and dissolve in water are called "hydrophilic" (water-loving), while nonpolar solutes, which do not dissolve in water are called "hydrophobic" (water-fearing or hating).

DNA has a sugar-phosphate backbone in its structure. The phosphate (PO3-) groups of the backbone are negatively charged. Water, being a polar molecule (with the oxygen end being more negatively charged, and the hydrogen ends being more positive), can interact with the negatively-charged phosphate groups of the DNA and allow the DNA to dissolve in water.

When salt (usually sodium acetate) is added, the positive ions of the salt (e.g. Na+ for sodium acetate) interact with the negatively-charged ends of the phosphate groups (PO3-) in the sugar backbone. This "neutralizes" the charges of the negatively-charged phosphate groups. As a result, the amount of water molecules able to interact with the phosphate groups diminishes, and this lessens the solubility of the DNA.

However, because water has a relatively high dielectric constant (index of polarity), it would be fairly difficult for the Na+ ions to interact with the PO3- groups. Adding the ethanol, which has a lower dielectric constant than water, makes it easier for the Na+ ions to come together with the PO3- groups, and shields it charge from the water molecules. This makes the DNA molecules less hydrophilic and less soluble. As a result, the DNA molecules come out of solution (through a process called precipitation).

What do the properties of waves moving through aquatic environments tell us about the organisms living in those environments?

Answers

Aquatic organisms greatly depend on the abiotic actors of an aquatic environment. Waves moving through the aquatic environment also influence the organisms living there. Depending upon the tidal zones, the organisms varies. Many aquatic organisms grow well in the intertidal zone can live in dry environment for a longer period of time. These organisms are also well adapted to withstand the damages that might be caused by the repeatedly pounding wave actions. Such organisms have tough exoskeleton (strong shell) to protect them from wave damage.
Some coastal plants are firmly attached to the rocks o that these are not torn away by the wave action. These plants have small, tough feather-like leaves.

This element has similar chemical properties as oxygen more protons than neon but fewer than argon

Answers

The element is SULPHUR.
Sulphur has similar chemical properties as oxygen because the two of them are in the same group. Sulphur has more protons than neon because, sulphur has 16 protons while neon only has 10. Sulphur has fewer proton than argon because sulphur has 16 protons and argon has 18 protons.

The element described is fluorine (F), with similar chemical properties to oxygen, more protons than neon, and fewer than argon, being highly electronegative and reactive.

The student is asking about an element that has similar chemical properties to oxygen, more protons than neon but fewer than argon. The element in question would be fluorine (F), which has an atomic number of 9. Like oxygen, fluorine is highly electronegative and tends to form negative ions by gaining an electron to complete its valence shell, achieving a stable electron configuration akin to neon. Fluorine has one more proton than neon (Z=10) and is one element prior to neon in the periodic table, making it a member of the halogens, which are known for their high reactivity and tendency to form compounds by gaining electrons. Argon (Ar), with an atomic number of 18, has a complete octet of outer-shell electrons and is a noble gas, chemically inert with rarely forming compounds.

Is it possible for two alleles to produce four phenotypes?

Answers

Yes the multiple alleles produce more than three phenotypes.

Yes, two alleles can contribute to multiple phenotypes through multiple allele inheritance and dominance hierarchies, allowing for a variety of phenotypic expressions beyond the simple dominant-recessive relationships originally described by Mendel.

It is possible for two alleles to contribute to multiple phenotypes if there are dominance hierarchies among multiple alleles at a single gene locus. This is known as multiple allele inheritance.

When discussing multiple alleles in a population, it is important to note that while an individual organism can only have two alleles for a gene (one from each parent), a population may have many alleles for a single gene. Some alleles might be dominant, others recessive, and some may even show incomplete dominance or co-dominance.

In the case of a gene with four different alleles, these can interact in various ways to produce a spectrum of phenotypes. For example, in rabbits, the coat color is determined by multiple alleles of the c gene. The wild-type allele is dominant to all other alleles, chinchilla is incompletely dominant over the Himalayan and albino alleles, and so forth. Therefore, the phenotype of progeny resulting from crosses between any pair of the four mutants will depend on the dominance hierarchy of these alleles.

To answer the original question, two alleles can influence more than two phenotypes if there are multiple alleles at the population level and varying dominance relationships among those alleles.

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.

Answers

The reduction of pyruvate forms a molecule called LACTATE. When human muscle cells doesn’t consist enough oxygen to convert organic molecules into ATP through cellular respiration, then it is called LACTIC ACID FERMENTATION. Instead of entering the mitochondria and being converted to acetyl CoA, pyruvate is reduced an electron is given, which is also a product of glycolysis.

The centrosomes replicate in what phase

Answers

S phase of interphase where the DNA replication takes place.

The area of a myofibril where actin filaments attach to one another is the

Answers

the answer is the z line

John and sue are expecting a child, but are concerned about a rare autosomal recessive disease that is present in both of their families. in the pedigree below, john is represented as individual iii-11 and sue is represented as individual iii-12. john\'s sister, iii-10, and sue\'s brother, iii-13, both do not show evidence of the disease, but john\'s paternal grandmother and sue\'s maternal grandfather both had the disease. assign the appropriate symbol to each individual in the pedigree.

Answers

Attached is the pedigree. I found the exercise on the internet.

The individuals that are missing a symbol are: II-5, II-6, II-8, III-10, III-11, III-12, III-13.

The individual II-5 would have the half black/half white square. A square because in the introductory text says that it's John's paternal grandmother (I-2) that has the disease. Half black/half white because his mother had the disease so she passed one allele that's necessarily a disease allele, and his father doesn't carry the disease or manifest it which means that from him, John's father (II-5) only received a normal allele.

The individual II-6 would have a question mark in a circle. A circle because she is John's mother once his father is the individual II-5. A question mark because we don't have information as for the manifestation of the disease in her, though we do know that she is either a carrier of the disease or inflicted by the disease because she has a daughter (John's sister) that has the disease meaning that John's sister received two alleles for the disease.

The individual II-8 would have the half black/half white circle. A circle because she is Sue's mother once her father is the individual II-7 (a square). Half black/half white because her father had the disease so he passed one allele that's necessarily a disease allele, and her mother doesn't carry the disease or manifest it which means that from her, Sue's mother (II-8) could only received a normal allele.

The individual III-10 would have a question mark in a circle. A circle because she is John's sister as said in the introductory text. A question mark because we can't affirm whether she is a carrier of one disease allele or does not carry the disease at all. We know by the introductory text that she doesn't have any signs of the disease but she could've have received a disease allele from her father or her mother if her mother is simply a carrier of one disease allele, or would definitely received a disease allele from her mother, and not from her father, if her mother has the disease.

John, the individual III-11 would have a question mark in a square. A square because is John, a male. A question mark because we can't affirm whether he is a carrier of one disease allele or does not carry the disease at all. We gather, by the introductory text, that he doesn't have signs of the disease but he could've have received a disease allele from his father or his mother if his mother is simply a carrier of one disease allele, or would definitely received a disease allele from his mother, and not from his father, if his mother has the disease.

Sue, the individual III-12 would have a question mark in a circle. A circle because is Sue, a female. A question mark because we can't affirm whether she is a carrier of one disease allele or does not carry the disease at all. By the introductory text, we gather that she doesn't have signs of the disease, but she could've have received a disease allele from her mother, once her mother is a carrier of a disease allele, turning her into a carrier as well, or could've received the normal allele from her mother. From her father she only received a normal allele.

The individual III-13 would have a question mark in a square. A square because he is Sue's brother according to the introductory text. A question mark because we can't affirm whether he is a carrier of one disease allele or does not carry the disease at all. We know, by the introductory text, that he doesn't show any signs of the disease, but he could've have received a disease allele from his mother, once his mother is a carrier of a disease allele, turning him into a carrier as well, or could've received the normal allele from his mother. From his father he only received a normal allele.

From this information, John and Sue have a 25% probability (1 in 4) of having a child with the disease (aa), a 50% probability (2 in 4) of having a child who is a carrier (Aa), and a 25% probability (1 in 4) of having a child who is neither affected nor a carrier (AA). This is figured through a Punnett Square analysis of two heterozygous carriers (Aa x Aa).

In this, we are dealing with a pedigree that represents an autosomal recessive disease. Let's first understand the symbols used in a pedigree:

Squares represent males and circles represent females.A horizontal line between a male and a female indicates marriage or mating.Vertical lines connected by a horizontal line indicate siblings.Shaded symbols represent individuals who are affected by the disease.

In order to assign the appropriate symbols to each individual, we need to identify their genotypes. Since the disease is autosomal recessive, it means that the disease allele is represented by 'a', and the normal allele is represented by 'A'. Therefore:

AA (homozygous dominant) means the individual does not have the disease and is not a carrier.Aa (heterozygous) means the individual does not have the disease but is a carrier.aa (homozygous recessive) means the individual has the disease.

Given the information:

John (iii-11) and Sue (iii-12) do not show evidence of the disease but have a family history of it. Therefore, they are likely heterozygous carriers (Aa).John’s sister (iii-10), who does not show evidence of the disease, is likely also Aa, since the disease is present in the family but she herself is unaffected.Sue’s brother (iii-13) also does not show evidence of the disease and is likely Aa for the same reason as John’s sister.John’s paternal grandmother and Sue’s maternal grandfather had the disease, meaning they are aa.

With this knowledge, we can deduce the following genotypes:

iii-11 (John): Aa (heterozygous carrier)iii-12 (Sue): Aa (heterozygous carrier)iii-10 (John’s sister): Aa (heterozygous carrier)iii-13 (Sue’s brother): Aa (heterozygous carrier)John’s paternal grandmother: aa (homozygous recessive)Sue’s maternal grandfather: aa (homozygous recessive)

Why do people with “inherited cancer” often develop cancer at a relatively young age

Answers

Environmental cancer is usally the result of damage to the cells caused by the environment. This damage accumulates over the life of a person. Inherited cancer is the result of genetic abnormalities present at birth. Since there is no need for damage to accumulate, the cancer develops earlier.

Two kinds of birds eat the same food and nest in the same area. These two species of birds are in _____?

Answers

symbiosis I believe is the answer.

competition is the answer I'm almost certain

The compound formed has a(n) ___________ bond and is a(n) _________________. A) ionic; crystalline solid B) covalent; amorphous solid C) metallic; crystalline solid D) covalent; crystalline solid

Answers

the answer is A)ionic,crystalline solid

I believe .. A ionic and crystalline solid !

What does ATP do for cells

Answers

ATP, or adenosine triphosphate, acts as the 'energy currency' of the cell, releasing energy when its terminal phosphate group is removed. This energy powers cellular processes, including muscle contraction and active transport, such as the sodium-potassium pump in cell membranes.

ATP, or adenosine triphosphate, is often described as the "energy currency" of the cell. It plays a critical role in storing and providing energy for various cellular functions. ATP molecules hold smaller amounts of energy, which is released just in the right amount for work within a cell. The release of energy occurs when ATP is broken down, usually by the removal of its terminal phosphate group, and this energy is employed in several ways.

For instance, muscle cell proteins utilize the energy for contraction by pulling each other, and this is made possible when bonds in ATP break open, releasing energy. ATP is also essential in processes such as photosynthesis, where it provides the energy to build glucose. Similarly, ATP is critical in cellular mechanisms like the active transport work of the sodium-potassium pump in cell membranes, where it alters the structure of the pump's integral protein to move ions against their electrochemical gradients.

Overall, ATP is indispensable for the cell, as it safely stores energy and releases it as needed to perform various cellular tasks, acting much like a rechargeable battery to power the cell's activities.

Question 1 vascular plants are divided into two main groups: seedless vascular plants, including ferns and club mosses; and seed plants. the seed plants are further divided into gymnosperms (seed plants that do not produce flowers) and angiosperms (seed plants that produce flowers). part a - gymnospe

Answers

Final answer:

Vascular plants are divided into seedless vascular plants and seed plants. Seed plants are further classified into gymnosperms (no flowers produced) and angiosperms (flowers and seeds produced). Examples include pines and fruit trees respectively.

Explanation:

Vascular plants are predominantly divided into two core groups: seedless vascular plants and seed plants. The seedless vascular group includes species such as ferns and club mosses. The seed plants are further classified into gymnosperms and angiosperms. Gymnosperms are plants that produce seeds but do not produce flowers, while angiosperms are plants that produce both flowers and seeds. Notable gymnosperms include pines and spruces, whereas examples of angiosperms include fruit trees and flowering plants.

Vascular plants are divided into two main groups: seedless vascular plants, which include ferns and club mosses, and seed plants. Seed plants are further divided into gymnosperms, which are seed plants that do not produce flowers, and angiosperms, which are seed plants that do produce flowers.

Learn more about Vascular Plants here:

https://brainly.com/question/36231103

#SPJ6

Are factors related to climate, such as rainfall and temperature, biotic, or abiotic factors?

Answers

biotic means resulting from living things usually because of their ecological reactions, abiotic is more physical than biological it isn't from a living organism.

So the weather is abiotic

Abiotic factors are those that are non-living aspects of the habitat of living organisms that affect them and the ecosystems' dynamics. Without abiotic factors, biology could not be - they may impact organisms in their reproduction, growth, and maintenance.
Examples of abiotic factors may include water, tides, light, pressure, radiation, humidity, soil constitution, and others such as the ones mentioned on the question - rainfall and temperature.

Using what you've learned, propose some possibilities for how commensal species, in contrast to infectious species, might live with us in peaceful symbiosis. consider commenting on ways the immune system remains refractory to commensals, compared to pathogens. see grading rubric below.

Answers

Commensal bacteria are present in places that are exposed to the external environment (gastrointestinal, respiratory tract, vagina,mouth, skin). There bacteria live constantly with their hosts and only under specific conditions they are able to express pathogenic traits.
The immune system has mechanisms for tolerating these commensal micro-organisms but actively reacts with potentially pathogenic bacteria, inducing the accumulation of regulatory T (Treg) cells.
This is why there is a symbiotic relationship between the host and the microflora

Middle layer of the wall of an artery or vein allowing it to withstand and modify blood pressure is

Answers

The answer is smooth muscle

WILL GIVE A BRAINLEST

Sharp leaves on the savanna trees protect them from _____.

fire

heavy rains

grazing animals

drought

Answers

I think it is grazing animals because then the animals would get poked

your answer would be Grazing animals
Hope this helped

Which processes of drug response are most subject to genetic variation? select one:
a. rates of drug movement into and through the gastrointestinal tract
b. drug dissolution in body fluids and drug binding to plasma proteins
c. drug binding with receptors and drug blocking of receptors
d. drug activation or deactivation and duration of drug actions?

Answers

The process of drug response most subject to genetic variation is drug dissolution in body fluids and plasma, also known as drug metabolism. This can be very dangerous because some substances can have a higher level of toxicity for people with a certain type of metabolism.

WILL GIVE A BRAINLEST

Grasses can withstand the fires common to grasslands because grasses _____.

are full of moisture

store water in their leaves

grow thickly together

have extensive root systems

Answers

D.) have extensive root systems.

In an ocean ecosystem, which is necessary to begin a food web?

Answers

I believe that phytoplankton is necessary to begin a food web

Answer:

Phytoplankton

Explanation:

Formed by unicellular eukaryote microalgae, phytoplankton is defined as the portion of planktonic organisms capable of photosynthesis, constituting the basis of the food chain in aquatic ecosystems. For this reason, we can say that in an ocean ecosystem, phytoplankton production is necessary to start a food chain.

Phytoplankton are composed of individuals from different taxonomic groups that have some common characteristics: they all have individualized nucleus and complex organelles in their cytoplasm, as well as photosynthetic pigments (chlorophyll a, b, carotenoids). These organisms, predominantly autotrophic, can also ingest particles, being characterized in some cases as myxotrophic.

1. Would you expect endangered species to be more frequently generalists or specialists?

Answers

Generalists are species that can thrive in many different kinds of environments and can feed on a varied diet. On the other hand, specialists require specific or special kinds of environments and diets for them to live, reproduce, and thrive. Because of their nature, specialists tend to less likely be able to adapt to changes in their environment. Inability to adapt would eventually lead to their deaths or their inability to reproduce, reducing the population of their species. Thus, endangered species are more frequently specialists.

What are the three main concerns with nuclear energy?

Answers

Hello there,
As from what I can recall, I can remember 4 concerns regarding nuclear energy
1) Storing radioactive waste
2) Safety
3) Weapons proliferation and terrorism
4) Health

Hope this helps ;))

~Top

How does the populations change over the course of generations?

Answers

It grows , as well as the internet does.

Eukaryotic cells contain certain structures that perform specialized functions for the cell. What are these structures called? A. cells B. organs C. tissues D. organelles

Answers

The answer is D - organelles. Organelles are essentially the cell's organs.

Which of the following best describes the interaction between Earth’s crust and living organisms?
a.
Raw materials essential for life are cycled through Earth’s crust.
b.
Fossil fuels are a valuable energy source for the biosphere.
c.
The continental crust allowed the evolution of life on land.
d.
The crust recycles the organic materials in sedimentary rock.

Answers

"Raw materials which are essential for life are cycled through the Earth's crust"

Answer: b. Fossil fuels are a valuable energy source for the biosphere.

Explanation:

The living organisms are dependent upon the earth crust for their food and resource needs. The earth crust is mined for a variety of inorganic and organic reserves like minerals, fossil fuels like petroleum, gasoline, natural gas and coal. The fossil fuels are non-renewable resources which are produced after million's of years the complete degradation and decomposition of the organic matter of dead animals and plants. This act as source of energy by the living organisms in biosphere.

In 1940 matthew and marion stirling found ________ at the site of ________.

Answers

In 1940 Matthew and Marion Stirling found basalt altars at the site of La Venta.

Matthew Stirling was an ethnologist and archaeologist that was sent on expeditions to the Mexican Gulf Coast area to further research the Olmec culture. It was in then years around 1940 that he found with his wife, Marion, several sculptures and monuments in that area. In 1940 he found several altars in La Venta.

Final answer:

In 1940, Matthew and Marion Stirling found a series of stone carvings and monuments at the La Venta site in Mexico. This site is significant in history because it was a major location of the Olmec civilization.

Explanation:

In 1940, husband and wife archaeologist team, Matthew and Marion Stirling, discovered a series of stone carvings and monuments at the La Venta site in Mexico. The La Venta site is notable for being one of the primary locations of the Olmec civilization, one of Mesoamerica's earliest and most influential cultures. The Stirling's findings at La Venta included upright stone monuments or 'stelae', altars, and large stone heads, which have since become iconic representations of the Olmec civilization.

In 1940, Matthew and Marion Stirling found artifacts at the site of Machu Picchu, a fifteenth-century Incan site located in Peru.

Learn more about Olmec civilization here:

https://brainly.com/question/1998607

#SPJ12

Why must predators in ecosystems with low npp cover huge ranges to survive?

Answers

NPP is the actual available energy that's produced by primary producers for other organisms to obtain energy from. When a predator lives in a ecosystem that has a low NPP, it means that the predator will have to cover a much wider range in order to have all the needed energy that's produced by those primary producers. If the there was a high NPP the need to search for those primary producers was much diminished as there would be enough energy available close by.

How does the fast blast dna stain work to make the dna visible to the naked eye?

Answers

DNA fragments stained with Fast Blast DNA stain appear deep blue against a light blue background and are visible to the naked eye

One of the liver's main functions is to detoxify potentially toxic substances. Given this information, which organelle(s) would you expect liver cells to have in abundance? Explain.

Answers

Smooth endoplasmic reticulum would be abundant in liver cells because it detoxifies drugs and poisons from the body.

The organelles which are abundant in liver cells are endoplasmic reticulum helps liver to detoxify potentially toxic substances.

What is endoplasmic reticulum?

The endoplasmic reticulum (ER) is an intracellular organelle made up of a network of continuous membranes. The ER is highly active in protein modification, lipid metabolism, and xenobiotic detoxification in the liver.

Maintaining these complex processes necessitates meticulous control over the ER lumen environment as well as the ER volume.The endoplasmic reticulum can be smooth or rough, and its function is normally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum. When those proteins are produced incorrectly, they can remain within the endoplasmic reticulum.

To find more on endoplasmic reticulum, refer here:

https://brainly.com/question/13118914

#SPJ2

"which part of the brain controls the autonomic nervous system?"

Answers

Final answer:

The hypothalamus is the key part of the brain that controls the autonomic nervous system, managing involuntary functions and maintaining homeostasis.

Explanation:Which part of the brain controls the autonomic nervous system?

The autonomic nervous system (ANS) manages involuntary functions such as heart rate, blood flow, and digestion. The hypothalamus is the primary structure in the brain that coordinates these functions. The hypothalamus integrates sensory information and cognitive processes to manage the ANS. It sends signals via the medial forebrain bundle and the dorsal longitudinal fasciculus to brain stem and spinal components of the ANS. This integration allows for the control of the lungs, heart, smooth muscle, and glandular functions without our conscious input. It is crucial for maintaining homeostasis in the body through its regulation of the sympathetic and parasympathetic nervous systems, which have often opposing effects to balance the body's internal environment.

Other Questions

In folding to make a 6-sided snowflake, what shape do you have after completing the first 5 steps?a.right trianglec.rectangleb.squared.circle What is 70% of 60 dollars How does normal gene expression differ from epigenetic effects on the genome? What commandment does this decree now allow European knights to ignore? How does lincoln's connection to liberty make him heroic? A cold front moved in last weekend. In 8 hours overnight the temperature outside dropped 24 degrees. What was the average temperature change for each hour? Which of these uses the principle of superposition of rocks to compare the age of fossils? A. Carbon half-life B. Radioactive dating C. Relative dating D. Uranium half-life BRAINLIEST TO BEST ANSWER!!!!The table shows a linear function. Write an equation that represents the function using function notation. Connect in Justin's school, 0.825 of the students participate in a school sport. If there are thousand students in Justin school, how many participate in a school sport? The reformers of the Anglican Church came to be called how did the forms of resistance to slavery Human facial discrimination in horses: can they tell us apart? If the number 659983 is rounded to the nearest hundred how many zeros does the rounded number have The number 0.4 can written as 4/10, so it is a rational number In your opinion, is SHe's Wearing a Dead Bird on Her Head! about fashion ? Why (not) ? What drug has been used since the 17th century and is now used in combination with other drugs to treat malaria? the length of a rectangle is 3 ft longer than its width if the perimeter of the rectangle is 26 feet find its area Which part of a person's eyes are photoreceptors that help her see the path in front and the trees around her when she is walking in the woods at night? the lens the cones the rods the pupils? please help ASAP!!!Fill in the truth table below for the disjunction p q. Type T for true or F for false.pqp qTT a0TF a1FT a2FF a3 Trade journals, industry-related publications, government statistics, and competitors' web sites are examples of ________ research. Steam Workshop Downloader