Answer:
The correct answer is option A, that is, air is cooler than the ground.
Explanation:
Refraction refers to a phenomenon in which there is a modification in the direction of propagation of any wave as a consequence of its mediating at distinct velocities and at distinct points along the wavefront. In case, when a sound from s source is refracted away from the Earth's surface, there is an indication that the air present above is cooler in comparison to the ground making the sound to refract towards the less dense medium.
Answer:
a
Explanation:
In the scenario above, identify the keystone and foundation species. Infer what might happen if keystone species were greatly reduced
Answer:
what is the scenario above
Answer:
C) Keystone species is the sea otter. Sea otters, playing a critical role in containing the urchin populations, prey on urchins and thus control the numbers of kelp grazers to maintain the forest.
Explanation:
How many different phenotypes can be produced by a pair of codominant alleles?
Answer:
Three
Explanation:
Codominant alleles are those alleles that when ars togehter in the genotype (heterozygous) are expressed simultaneously. An example of codominant alleles are those for the AB blood types: when allele for A and allele for B are together in heterozygous, both are expressed in phenotype. Another two possible phenotypes produced by this pair of codominant alleles are A blood type (when two A alleles are in homozygous genotype) and B blood type (when two B alleles are in homozygous genotype).
Multiple alleles allow for a variety of phenotypes, including those from codominant alleles. An example is the ABO blood group system in humans.
Multiple alleles refer to the existence of more than two alleles for a given gene within a population, resulting in various combinations of alleles and different phenotypes. In the case of codominant alleles, both alleles in the pair are expressed fully, leading to unique phenotypes. An example is the ABO blood group system in humans where IA and IB alleles are codominant, resulting in the AB blood type.
There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?A. lysosomeB. mitochondrionC. nucleusD. ribosome
Answer:
D. Ribosome
Explanation:
Prokaryotic and eukaryotic cells have three things in common.
1. Cells
2. Cell Membrane
3. Ribosomes
The similarity between prokaryotic and eukaryotic cells from the options is ;
( D ) Ribosome
The major similarities between prokaryotic cells and eukaryotic cells is that they can be either unicellular or multicellular, also they both have plasma membranes and ribosomes.
The ribosomes plays a major role in the protein synthesis that occurs in the cells. while some of the difference between the cells are :eukaryotic cells have membrane bound nucleus while prokaryotic cells have lysosome.
Hence we can conclude that The similarity between prokaryotic and eukaryotic cells from the options is Ribosome
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which is an example of visual data with regard to computer crime?
Great question!
I would say images. images do not require (in most cases) a lot of work to find, even if deleted or in code
Answer:
Images are visual data in relation to computer crimes.
Explanation:
Images are visual data related to computer crimes, such as videos, photographs, drawings, among other visual files used by the investigator in the search for computer crimes.
Computer crimes are those committed on the Internet, whether through a public, private or domestic network. They can reach a single person or several people at the same time, and have different purposes.
It should also be noted that the same crime can be committed in several places at the same time, using one or several different computers.
A significant drop in performance in cognitive areas such as memory and reading may __________.
Answer:
A significant drop in performance in cognitive areas such as memory and reading may foreshadow death within the next few years.
Answer:
A significant drop in performance in cognitive areas such as memory and reading may foreshadow death within the next few years.
Explanation:
This situation may be called terminal decline and refers to the moment when the human body begins the process of senescence, that is, from the beginning of the events that will result in the death of the individual that will happen in a few months or in a few years. It usually happens to the elderly and can be conceptualized as symptoms related to memory or other cognitive functions, such as reading, perception, among others.
Why do most organisms live in the neritic zone
The neritic zone is the zone in the water bodies that is by far the richest in marine life. This zone is occupying the shallowest part of the oceans, representing the waters above the continental shelf up until the drop off of the continental shelf, having maximal depth of roughly 200 meters. This makes this zone very good for the marine life because of two major reasons, one being the sunlight, and the other being warmth of the water. Because the neritic zone is shallow, the sunlight manages to penetrate through it, thus it enables the producers to be able to perform photosynthesis. Since the producers are the basis of all ecosystems as they are the ones that produce the most energy and are primary food source, that means that all the other organisms can prosper as well. Also, the fact that this zone is shallow means that the water is warmer, as the sunlight manages to affect most of it, thus making it warmer and much better for life than the other deeper zones that are much colder.
Which is true of the regions near Earth’s equator? They are physically farther away from the sun than the poles. They stay cooler than the poles. They receive less sunlight than the poles. They receive more solar energy than the poles.
they receive more solar energy than the poles
Answer:
Option D, They receive more solar energy than the poles.
Explanation:
The sunlight reaching equator are more direct as compared to the light reaching the poles. Since the earth is tilted at its axis, the sun rays strike the poles at a slant and thus the angle of incidence at poles is much smaller than that of angle of incidence at the equator.
The more slant the sun rays, the less heating effect is produced and hence poles are cooler than the equator.
Therefore, Option D is correct since Equator receives more heat as compared to the poles.
When does a mutation in a parent affect the offspring
Answer:
When occurs in gametes
Explanation:
Mutations are changes in DNA sequence that can create genetic variation within the population and thus are the ultimate source of new alleles . Mutations can occur as a result of mistake during the DNA replication, under the influence of environmental factors (UV radiation, chemical agents). They can be harmful, beneficial, neutral. Based on the location of cell mutation, they can be divided into:
somatic mutation-within the somatic cells, these mutations affect only the parents (not inherited)germline mutation-within gametes, can be inherited on offspring.What are two general uses of protein in an organism
Energy & Repair/Maintenance
A normal bacterial cell carries on the chemical reaction A----------->B. A certain mutant bacterial cell cannot produce substance B. The mutation was most likely the result of a change in the..
1. Ribosome on which enzyme X is made
2. Ability of the DNA to replicate
3. Amino acid sequence of RNA
4. Gene that codes for enzyme X
Answer:
The correct answer is option 4. Gene that codes for enzyme X
Explanation:
Hello!
Let's solve this!
Mutations are a change in the DNA sequence.
We will analyze each of the options:
1. Ribosome on which enzyme X is made: the ribosome cannot suffer mutations.
2. Ability of the DNA to replicate: DNA can suffer mutations, but will not affect the production of substances.
3. Amino acid sequence of RNA: RNA does not suffer mutations
4. Gene that codes for enzyme X: This option is correct because when the gene undergoes a mutation, the enzyme that is encoded by that gene will be affected.
After the analysis we conclude that the correct answer is option 4. Gene that codes for enzyme X
If you dissected a tadpole, what difference would you find from what you saw in the adult frog?
Answer:
it doesnt have any legs
Explanation:
Which natural polymer contains 3,000 or more glucose monomers? starch protein cellulose nucleic acid?
Answer:
cellulose
Explanation:
cellulose is a polymer. it a chain of repeating monomers. the monomer for cellulose is glucose. cellulose is a polymer
which natural polymer contains 3,000 or more glucose monomers?
cellulose
The following represents the main locations fluids are found in the human body. Rank these body fluids in order from the fluid that accounts for most in the human body to the fluid that accounts for the least. The following represents the main locations fluids are found in the human body. Rank these body fluids in order from the fluid that accounts for most in the human body to the fluid that accounts for the least. interstitial fluid, cytosol (intracellular fluid), plasma cytosol (intracellular fluid), plasma, interstitial fluid plasma, cytosol (intracellular fluid), interstitial fluid cytosol (intracellular fluid), interstitial fluid, plasma
Answer:
cytosol (intracellular fluid), interstitial fluid, plasma
The body fluids should be ranked based on their volume in the human body as follows: intracellular fluid (cytosol) the most, followed by interstitial fluid, and plasma the least.
Explanation:The question is asking to rank the main locations where fluids are found in the human body, from the most prevalent to the least. In terms of volume, the majority of bodily fluids are located in the intracellular fluid compartment, which includes the fluid within cells, mainly the cytosol. The next largest volume is the interstitial fluid, which surrounds and bathes all of the body's non-blood cells. Finally, plasma, which is the fluid component of blood, accounts for the least volume of the three mentioned.
Therefore, the correct ranking of these body fluids from the one that accounts for the most in the human body to the one that accounts for the least is:
Cytosol (Intracellular Fluid)Interstitial FluidPlasma
Suppose two AaBbCc individuals are mated. Assuming that the genes are not linked, what fraction of the offspring are expected to be homozygous recessive for the three traits?A) 1/4B) 1/8C) 1/16D) 1/64
Answer:
D. 1/64
Explanation:
When we say homozygous recessive, you are looking for a pair of alleles that are both in lower case. This means that the recessive trait will be shown phenotypically. So the genotype that you are looking for in the Punnet would be:
aabbcc
Because it says reecssive for all three traits. To get the ratio, all you have to do is count how many times the combination occurs in the Punnet out of the total number of outcomes.
Attached is a Punnet for this scenario.
As you can see it only occurs once out of the 64 possible combinations.
So the answer would be 1/64.
The expected fraction of offspring that will be homozygous recessive for all three traits when two AaBbCc individuals are mated is 1/64. Each trait independently has a 1 in 4 chance of being homozygous recessive since each parent randomly distributes its alleles. The probabilities are multiplied together for each of the three traits.
Explanation:Your question asks about the expected fraction of offspring that will be homozygous recessive for all three traits when two AaBbCc individuals are mated.
Each trait has a 1 in 4 chance of being homozygous recessive (aa, bb, or cc) because each parent will distribute its alleles randomly according to Mendel's principle of random segregation. This means for each trait, there's a 25 percent chance the offspring receives only recessive alleles.
Calculating for three traits being homozygous recessive, we independently multiply the probabilities: 1/4 (for the first trait) * 1/4 (for the second trait) * 1/4 (for the third trait), which yields 1/64. So, the expected fraction of offspring that will be homozygous recessive for all three traits is 1/64, corresponding to option D).
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15 POINTS i will mark brainliest
Name two primary decomposers and describe their function in the recycling of life materials. (please write your own answers)
Bacteria and Fungi are the 2 primary decomposers.
Fungi are considered as the main decomposers of litter or wastes in various ecosystems. The growth of fungi is characterized with the presence of hyphae. Bacteria also decompose materials. They are the unicellular organisms which can break down only the surfaces of organic matters.
Answer:
Two primary decomposers are Bacteria and Fungi.
Explanation:
Put simply, there main role is to turn decaying cells into nutrient components for plants and the soil. Without Bacteria and Fungi dead organisms would decompose at a much slower rate.
The table below shows the number of chromosome pairs for various organisms.
there is no table in the question
What is the part of the cell cycle process by which chromosomes in a cell nucleus are separated into two identical sets of chromosomes
Answer:
Mitotic phase
Explanation:
Cell cycle is composed of interphase and mitotic phase. Interphase is aphase of cell preparation. It is subdivided into:
G1 (gap 1 phase)-the cell grows and becomes largerS phase- replication of DNA, duplication of centrosomesG2 (gap 2 phase)-proteins and oranelles are madeMitotic phase is phase of cell division, chromosomes are separated, daughter cell get identical sets of chromosomes. It is followed by cytokinesis-separation of cytoplasm. Stages of mitosis are:
prophase-condensation of chromatin into chromosomes, the nuclear envelope breaks down, mitotic spindle formationmetaphase-the chromosmes line up (metaphase plate)anaphase-the siste chromatides move toward opposite cell polestelophase-the nuclear envelope forms again, cell division is almost completeWhen confronted by an invader, an _________ is produced to protect the body from future invasions?
an Antibody!
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
Antibody
Explanation:
The pathogen or an invader when enters the body it gets encountered by the immune cells in the body. The lymphocytes when interacts with the antigen/pathogen or invader, it produces a immune response.
The immune response results in production of memory cells and antibody producing cells. The antibody producing cells forms antibody which kills the invader and the memory cells generates memory to prevent the body when second time encounter occurs with the same invader.
A gardener purchased 20 full-grown pea plants. All 20 were the same genotype and had purple flowers. The gardener crossed two of these plants to get seeds for the next season. The seeds from the cross produced some plants with purple flowers and some with white flowers. The gardener learned that in pea plants the allele for purple flowers (P) is dominant of the allele for white flowers (p). What was the most likely genotype of the original 20 full-grown plants?
The original 20 full-grown plants’ genotype would have to be (1,2). When you make a Punnett square crossing two heterozygous, you see that you get these as a result: (1,1) (1,2) (1,2) and (2,2). Only the (2,2) can be white therefore it’s a 1/4 possibility of getting white flowers by crossing two full-grown purple pea plants.
"Pp" is the likely genotype of the original 20 full-grown plants.
What is Genotype?An organism's genotype is defined as the complete set of its genetic material, which can also be used to refer to alleles, or variants, that occur in a particular gene or genetic locus. This is also called as the Genetic makeup of the organism.
For above given information,
All 20 fully grown pea plants have purple flowers. But when two of these 20 plants are mixed, the seeds of the cross produce some plants with purple flowers and some with white flowers. So, the 20 plants have purple color which must be carrier of white color allele. Thus, genotype of all the 20 pea plant species would be "Pp"
if these two "Pp" genotype plants are crossed following offspring's are produced -
PP Pp
Pp pp
Since "p" is a recessive allele , so when these two recessive alleles are together they express their trait. So, one out of four offspring is white in color.
Thus, "Pp" is the likely genotype of the original 20 full-grown plants.
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What type of blood vessel covers the alveoli
The answer is: Capillaries
. If a star's surface temperature is 2900 Kelvin , half of our Sun's current temperature, then the output energy of the star is: a. Half the output energy of the Sun b. Fourth the output energy of the Sun c. Sixteen times less than that of the Sun d. None of the above
I don’t know what the answer is I wish I could help
Mast cells play what key role in initiating an immune response? A. Releasing histamines B. Creating antigens C. Clotting wounds D. Creating antibodies
Answer: Option a
Explanation:
Mast cells play a vital in the inflammatory and immediate allergic reactions. These cells release inflammatory mediators such as histamines, cytokines and chemotactic factors.
These chemicals acts on the smooth muscles, mucous glands and the inflammatory cells.
Histamines are not only released when the body detects any antigen it is also released during the time of injury.
Answer:
Option A
Explanation:
I agree with the answer above
Mast cells play a vital in the inflammatory and immediate allergic reactions. These cells release inflammatory mediators such as histamines, cytokines and chemotactic factors.
These chemicals acts on the smooth muscles, mucous glands and the inflammatory cells.
Histamines are not only released when the body detects any antigen it is also released during the time of injury.
If a stop codon is like a red traffic light, which is most like a green traffic light during transcription?
DNA
promoter
mRNA
nucleotide
The promoter :)
Hope this helps
Answer:
promoter
Explanation:
The promoter is the sequence on DNA that serves as a binding site for RNA polymerase. The RNA polymerase is the enzyme of transcription. Binding of RNA polymerase to promoter sequence leads to the start of the process of transcription.
So, promoter sequence serves as a green light for the process of transcription.
An investigation was done to see the effect of day length on the number of eggs chickens laid.
The dependent variable in this experiment is:
A) number of eggs laid
B) day length
I think it’s A) number of eggs laid
The correct answer is A) Number of eggs laid
Explanation:
In an investigation, the factor that is being studied and can be affected by other variables is known as the dependent variable. Additionally, this is the opposite of the independent variable that is manipulated on purpose by the researchers. This implies, in the case presented, the day length is the independent variable because this is going to be manipulated by the researchers, and therefore, the dependent variable is "number of eggs laid" as this factor is the one being studied and the one that is expected to be affected by the independent variable.
Water's unique properties are due to the fact that it is a __________ covalent molecule.
Answer:
Polar Covalent
Explanation:
I think it is this... considering that it is a Polar Covalent molecule. A better answer that the question should have eluded to is the fact that, water gets many of properties due to the fact that it can Hydrogen Bond or its Hydrogen Bonds.
How deforestation contributes to global warming
sample response : When plants photosynthesize, they remove carbon dioxide from the atmosphere. When a large number of trees are removed from an area, the levels of carbon dioxide in the atmosphere remain higher than they would be if the trees were present. Since carbon dioxide is a greenhouse gas, the presence of more carbon dioxide in the atmosphere means that more heat is trapped in the atmosphere. This causes temperatures near Earth’s surface to increase.
Explanation:
Answer:
Deforestation contributes to global warming because with trees being cut down there is less oxygen being made and no trees to take in the carbon dioxide that is being produced. So without trees to do the work, people build greenhouses which uses their own gas that makes the world warmer because it traps the heat from the atmosphere.
Explanation:
You are asked to draw blood from the median cubital vein. you will search for this vein in the ________.
Answer:
-Anterior side of the elbow
Explanation:
-The median cubital vein is a superficial vein of the upper limb. It connects the basilic and cephalic vein and is often used for taking blood, as it lies relatively close to the surface of the arm and becomes prominent when pressure is applied.
-It lies within the elbow pit, which is the area on the anterior of the elbow which is triangular in shape. Additionally, it is superficial to the lacertus fibrosus, also referred to as the bicipital aponeurosis, which is also located in the cubital fossa.
How do frogs get their energy when they hibernate
Answer:
From their energy storage-body fat
Explanation:
Frogs (especially terrestrial frogs) survive during the winter by going into the state of hibernation (dormant state). Since the frogs are cold-blooded animals (depend on environmental conditions), they need to find a hidden place (hibernacula) where they can survive unfavorable cold conditions. During these hibernation state, frogs slow down their activities: there is no moving, breathing, not even the heart beating. Frogs use their body fat storage as an energy source. Glucose from the liver is released in the blood and it acts as an antifreeze.
Based on the body structures of these animals, which two conclusions are scientifically sound?
Answer:
help
Explanation:
Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) View Available Hint(s) Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) Decomposition in soil releases nitrogen that plants can use. Grass grows on a sand dune, is replaced by shrubs, and then by trees. Overgrazing causes a nutrient loss from soil. Introduced pheasants increase, and native quail populations disappear. A mouse eats seeds, and an owl eats the mouse.
Answer:
The correct option is this: GRASS GROW ON A SAND DUNE, IS REPLACED BY SHRUBS AND THEN BY TREES.
Explanation:
Ecological succession refers to the gradual process by which the living organisms in a particular environment are replace overtime. Succession usually occurs as a result of disturbance to the original environment. Ecological succession can be termed as primary or secondary succession based on the type of environment in which the succession occur. One unique features of ecological succession is that lower living organisms are usually replaced with advanced living organisms as time goes on. For instance, in option D, the grasses were replaced by shrubs, which are also later replaced by trees.
The scenario of grass being replaced by shrubs, and then trees on a sand dune exemplifies ecological succession, specifically secondary succession.
Explanation:The example that best illustrates ecological succession is: 'Grass grows on a sand dune, is replaced by shrubs, and then by trees.' This process is an instance of secondary succession, where an area that previously supported life and has nutrient-rich soil undergoes a series of changes in its community structure over time. Initially, pioneer species like grasses colonize the area, which is then followed by a succession of plant communities including shrubs and finally trees, leading to a more complex ecosystem.