A biologist collected 1 gallon of pond water and counted 50 paramecium. based on the sampling technique, how many paramecium could be found in the pond if the pond were 20,000 gallons?

Answers

Answer 1
1 gallon of pond water = 50 x 1 paramecium

20,000 gallons of pond water = 50 x 20,000 paramecium = 1,000,000 paramecium
Answer 2

Answer:

There are 1,000,000 paramecium in 20,000 gallons

Explanation:

This problem can be solved by a simple direct rule of three because as the number of gallons of water increases, so does the number of paramecium.

We have that each gallon of pond water has 50 paramecium. How many paramecium are there if there are 20,000 gallons. So

1 gallon - 50 paramecium

20,000 gallons = x paramecium

x = 20,000*50 = 1,000,000 paramecium


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Leucoplasts are types of?

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They are colorless plastics
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The lowermost level of the epidermis is known as the:

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The lowermost level of the epidermis is known as stratum germinativum. It is the bottom of the epidermis and cells divide constantly and push older cells upward. It is mainly complete up of basal keratinocyte stem cells which can be well thought-out the stem cells of the epidermis. They distribute to practice the keratinocytes of the stratum spinosum which transfer rapidly. Other types of cells originate within the stratum basale are melanocytes which is pigment making cells, langerhans cell which is immune cells and merkel cells such as touch receptors.

An example of programmed cell death (death at maturity) is the differentiation of

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An example of programmed cell death is the differentiation of VESSEL AND TRACHEARY ELEMENTS IN XYLEM. Programmed cell death refers to the deliberate killing of unwanted or old cells in the body as a result of intracellularly program cell death. It is also called apostosis. It is one of the mechanism by which the body remove unwanted cells from circulation. 

What is a vertical section through the body, dividing it into left and right, called? what is a vertical section through the body, dividing it into left and right, called? regional sagittal transverse frontal?

Answers

Sagittal = dividing the body into left and right parts.

A client with chronic obstructive pulmonary disease (copd) has been prescribed an inhaled bronchodilator. which technique should the nurse implement in order to ensure safe and complete delivery of the prescribed medication?

Answers

The answer to this question is that the nurse should implement a technique which will use a spacer or extender with the metered-dose inhaler. An bronchodilator is also known as asthma inhalers is used to help patients to breathe easily. Patients with copd are given this medicine to give relief to patients and help them breathe easily.

A client who has sustained multiple fractures of the left leg is in skeletal traction. the nurse has obtained an overhead trapeze to improve the client’s bed mobility. to which high-risk area must the nurse pay particular attention during assessment for indications of pressure and skin breakdown?

Answers

back of the left heel

Final answer:

In a patient with skeletal traction using an overhead trapeze, the nurse must closely monitor for pressure sores on bony areas in frequent contact with the bed or traction equipment.

Explanation:

When caring for a client in skeletal traction, a nurse needs to monitor for pressure sores, also known as decubitus ulcers or bedsores. These sores occur from constant, unrelieved pressure on bony areas of the body, leading to reduced blood flow and potential tissue death. In the case of a patient with skeletal traction who is using an overhead trapeze to improve bed mobility, the nurse must pay close attention to the areas of the body that come into frequent contact with the bed or traction equipment. These high-risk areas typically include the coccyx, sacrum, heels, and elbows. Regular assessment and repositioning of the patient, as well as the use of supportive devices or cushions, are essential to prevent the development of pressure sores.

During hemostasis, which process occurs first?

Answers

Hemostasis is a process which would cause for bleeding to halt and is the first step in healing wounds. During hemostasis, the process that happens first would be vascular spasm. The damaged vessels are constricted  which would result to reducing the amount of the blood flowing in the area thus limiting blood loss.  This action is stimulated by factors like direct injury to a smooth muscle. This would allow chemicals to be released by the platelets and the endothelial cells. This response would be more effective as the damage is being increased. Also, it occurs more effectively in areas where there are smaller blood vessels.

At what point during protein synthesis are genes expressed?

Answers

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as transfer RNA (tRNA) or small nuclear RNA genes, the product is a functional RNA.

Answer: When the protein for a particular gene is formed, the gene is expressed

Gene expression is the process in which the information from a gene is used for the synthesis of protein. The gene code for protein and the protein regulate the function of the cell in the body.

It involves the process of transcription in which a segment of DNA is xeroxed into mRNA by the help of enzyme RNA polymerase. The next step is the translation in which the messenger RNA is decoded in the ribosome to produce a specific amino acid or the polypeptide chain that perform a specific function in the cell.




Is J. Evans male or female? How can you tell?
How many chromosomes does J. Evans have?

Answers

Male , and has the XY chromosomes pair which makes him have. About 46 chromosomes

An expectant mother of twins has been told there is a strong chance that she will go into labour early and her babies will be premature. in order to increase the chances of having healthy infants, she is given a dose of steroids to stimulate the production of surfactant in the infants' lungs. surfactant is important for survival of the babies because it reduces:

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Surfactant is important for survival of the babies because it reduces surface tension in the lungs which allows an ease of lung inflation. This substance is being produced in the lungs of the baby that is unborn approximately during week 20 and it increases during week 30. It is a substance containing fats and four type of surfactants namely proteins SP-A, SP-D, SP-B and SP-C.  It would function to prevent the  malfunctioning of the alveoli by the reduction of the effort that is needed to enlarge or expand the lungs during breathing. It helps the unborn baby to effortlessly breath.

A client suffers from low mood and disturbed sleep. this client is most likely experiencing a change in which neurotransmitter?

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The answer to this question is the change in neurotransmitter serotonin. A low level of serotonin can lead to a low mood, depression, and even anxiety. Serotonin is a chemical found in our body that gives / transmits impulses that is regulated to makes a person happy and maintains a mood balance.

how many of the devices that identified inside the control room need electricity to operate

Answers

All of the devices that identified inside the control room need electricity to operate.

Mostly control rooms (also known as operations center, or operations control center (OCC)) are for only authorized persons and general public are not allowed to enter there. Many electronic displays, control panels and other electronic devices are there in the control room.

What are narcotics?
A. drugs that act as sedatives and slow down activity and make a person calm, sleepy, or even unconscious
B. drugs that are derived from opium as well as drugs that have similar chemicals but are man-made
C. drugs that energize behavior and are often used to help a person stay awake, lose weight, or elevate mood
D. drugs that have chemicals that influence perceptions, moods, consciousness, or behavior

Answers

A. A person gets out of his mind, he becomes calm then the situation is effective,he doesn't care out about stuff. It's not  B or C of course,it could be D. But i think its A.

A flood kills most of a population of ants that live near a river. after the flood, the ant population increases, but its allele frequency is different. what type of effect is this?
a.genetic drift
b.mass extinction
c.bottleneck
d.founder

Answers

Answer:

The answer is: a. Genetic drifts originate from the error, in this case: c. Bottleneck.

Explanation:

Genetic drift, also known as allelic drift is an evolutionary force that acts together with natural selection by changing the allelic frequencies of species over time.

Bottleneck, is that a population undergoes a drastic reduction in its size, giving rise to a population with a high probability of suffering genetic drift. Any mutation in an individual will be amplified in the community when it grows again. Bottleneck events are also characterized by producing a reduction in the genetic diversity of species, due to the extinction of less frequent alleles.

The answer is: a. Genetic drifts originate from the error, in this case: c. Bottleneck.

Final answer:

The effect in which a flood changes the allele frequency of an ant population by killing most of them is known as the bottleneck effect, which is a form of genetic drift.

Explanation:

The event described in the question, where a flood kills most of a population of ants and the remaining population has a different allele frequency, is known as the bottleneck effect. This type of effect is an example of genetic drift, which occurs when a large portion of a population is suddenly wiped out due to a disaster, such as a flood in this case.

The survivors' genetic structure becomes the genetic structure of the entire population, which may be very different from the pre-disaster population. The bottleneck effect reduces or eliminates alleles within a population as a result of the disaster killing individuals at random, for reasons unrelated to their traits.

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The term ________ refers to the fact than an epithelial tissue has only one layer of cells.

Answers

The answer is: simple epithelium

goodluck, my friend :-)
epithelium, hope I helped

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Do you mean what is a scientific question? if so it is a hypothesis.
What is *a scientific question? A scientific question is a question that can lead to a hypothesis and can help you answer the reason of an observation.

How does the structure of a cell suggest its function? list three examples?

Answers

Explanation:

The structure of a given cellular component has a lot to do with its function, these relationships are called structure-function relationships.

Examples:

Cell membranes: This structure is responsable for the cell's physical integrity, it also regulates it's interaction with outer molecules and other cells. Cytoplasm: Consists of a watery matrix that supports the interior cell contents. Most chemical reactions occur here with the help of enzymes. The watery nature of this structure make reactions more viable.  Ribosomes:  Responsible for the manufacture of all proteins the organism needs through a process called transcription where mRNA is made by DNA then taking individual amino acids linking them together to create chains, forming proteins. Their two subunits suggest the ability to construct proteins

I hope you find this information sueful and interesting! Good luck!

Here are three examples:

The cell membrane is a thin layer that surrounds the cell and protects it from the outside environment. The nucleus is the control center of the cell. It contains the DNA, which is the genetic material that determines the cell's structure and function.The mitochondria are the "powerhouses" of the cell.

What are these examples about?

The cell membrane also helps to control what substances can enter and exit the cell. This is important because cells need to be able to take in nutrients and get rid of waste products.

The nucleus also contains the ribosomes, which are responsible for making proteins. Proteins are essential for all of the cell's functions.

They are responsible for converting food into energy that the cell can use. The mitochondria are also important for cell growth and reproduction.

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which of these conditions would promote aldosterone release from the adrenal glands

Answers

Final answer:

Conditions that promote aldosterone release from the adrenal glands include decreased blood pressure/volume, increased potassium levels, and activation of the renin-angiotensin system. These conditions lead to increased sodium and water retention, thus elevating blood pressure.

Explanation:

Several conditions stimulate the release of aldosterone from the adrenal glands. These include situations that trigger a decrease in blood pressure or blood volume, an increase in potassium levels in the blood (hyperkalemia), or the activation of the renin-angiotensin system (RAS), a hormone system that regulates blood pressure and fluid balance. For instance, if blood pressure drops, the kidneys respond by releasing renin, which leads to a series of reactions that ultimately results in the production of aldosterone. The aldosterone then acts on kidneys, causing them to retain sodium and water, which in turn increases blood volume and pressure.

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Because it's a site of heat production which type of connective tissues found in animals that hibernate during the cold winter months

A. Dense fibrous connective tissue

B. White adipose tissue

C. Reticular fibrous connective tissue

D. Brown adipose tissue

Answers

I think the correct answer would be D. Brown adipose tissue is the connective tissue that can be found in animals that hibernate during the cold winter months because it is a site for heat production. It is also called as brown fat and is found in almost all of the mammals. Its main function is for thermoregulation.  It functions to transfer the energy from the food being processed in the body into heat energy which is then used by living organisms to maintain body heat especially during cold conditions. This tissue or fat is abundant in hibernating mammals and in newborn babies. Also, it is present and active in adults.

Organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. phototrophs; chemoorganotrophs chemoorganotrophs; heterotrophs autotrophs; chemoorganotrophs autotrophs; heterotrophs

Answers

Autotrophs and heterotrophs respectively

Label the parts of a cell membrane with the term that describes each part.

Answers

Final answer:

The cell membrane consists of several parts, including the phospholipid bilayer, integral proteins, peripheral proteins, glycoproteins, and cholesterol. These components work together to maintain the structure and function of the cell membrane.

Explanation:

The cell membrane is composed of several parts that play important roles in the functioning of a cell. These include:

Phospholipid bilayer: This is the main structural component of the cell membrane. It consists of two layers of phospholipids arranged with their hydrophilic heads facing the external and internal environments and their hydrophobic tails facing each other.Integral proteins: These proteins are embedded within the phospholipid bilayer and can span the entire membrane. They are involved in various functions, such as transporting molecules across the membrane and cell signaling.Peripheral proteins: These proteins are bound to the outer or inner surface of the cell membrane. They play roles in cell signaling and maintaining the cell's shape.Glycoproteins: These are proteins with attached carbohydrate chains. They serve as recognition sites for other cells and molecules.Cholesterol: Cholesterol molecules are interspersed within the phospholipid bilayer and help maintain the fluidity and stability of the cell membrane.

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Final answer:

The cell membrane is composed of a phospholipid bilayer, proteins, and carbohydrates, each with a specific function. These parts work together to regulate the passage of substances, maintain internal conditions, and facilitate cell communication.

Explanation:

The cell membrane is composed of several parts, each with a specific function. Here are the main parts of a cell membrane:

Phospholipid bilayer: This is the main component of the cell membrane, consisting of two layers of phospholipids. The hydrophilic heads face outward, while the hydrophobic tails face inward, creating a barrier.Proteins: Embedded within the phospholipid bilayer, proteins have various roles, including transport of molecules, cell signaling, and structural support.Carbohydrates: Attached to some proteins, carbohydrates help cells recognize and communicate with each other.

These parts work together to regulate the passage of substances in and out of the cell, maintain internal conditions, and facilitate cell communication.

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What type of map is best suited for maritime navigation

Answers

the best map suited for maritime navigation is the mercator projection

A 40-year-old female is scheduled for a routine screening baseline bilateral mammogram with computer-aided detection (cad). what are the cpt® and icd-10-cm codes reported?

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The CPT and ICD-10 code will be 77067 for bilateral mammogram with CAD and Z12.31 for encounter for screening mammogram for malignant neoplasm of breast.
CPT is a code that used for identifying a treatment. It's a bit different with ICD-10 which was coding diagnosis of the patient.

The unregulated use of fertilizers has actually benefited freshwater life zones.

Answers

If this is a true or false question I think the answer is false

The right answer is false

In the fields, excessive fertilizer use can lead to soil depletion due to overexploitation.

The abuse of nitrogen-based synthetic (or industrial) fertilizers causes very dangerous environmental problems such as air or water pollution.

Most fields grown in industrialized countries receive more nitrogen than they can use. This is a terrible effect on the nitrogen cycle which is overloaded. Although nitrogen is a vital and essential element of living ecosystems and is the first nutrient for all green plants, nitrogen overload and other chemical elements can lead to their death.

When an excess of nitrates seeps into the water, it can affect our ecosystem. High concentrations of nutrients are responsible for abundant "blooms" of developing algae. These algal blooms consume a lot of oxygen and block the sun's light, causing the death of other organisms. This process is called eutrophication.

The soils best associated with tropical rainforest areas such as the amazon basin and the wet-dry climate area are

Answers

The soils best associated with tropical rainforest areas such as the amazon basin and the wet-dry climate area are ultisols and oxisols.
Ultisols are deficient in magnesium and calcium but are well-weathered.
Oxisols are old, acidic, reddish, and leached.

has anyone done the 2.03 assignment?

Answers

for which grade? and which class?
i have whats the problem? 

What forms of energy are involved with snow on the mountain breaks loose resulting in an avalanche?

Answers

During an avalanche the potential energy of the snow on the mountain is converted into kinetic as the snow rushes downward.

The _______ is a set of flattened stacks of membrane-bound sacs in an animal cell.

Answers

The GOLGI APPARATUS. Golgi apparatus is involved in the storage, modification and secretion of glycoproteins and lipids which are moved out of the golgi apparatus for utilization within the cell. They are generally found in large quantities in cells that have secretory functions, for instance pancreas.

Mercury is not readily excreted; it is stored in mammalian body tissues. this is best described as ________.

Answers

Bioaccumulation is the process of heavy metals being stored in animal tissues. Not only due heavy metals build up in animal tissues but pesticides and other toxins as well. Bioaccumulation is basically the physiological effect of animals absorbing substances at a faster rate than which the substance can be removed from the body by either catabolism or excretion.

True or false: routes of exposure to chemicals are breathing, skin/eye contact, and swallowing.

Answers

Routes of exposure can be all of these things, true.
True

Hope this helps : )
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