How does evolution explain the similar legs in mammals and explain why the function differently?
Answers
Answer/Explanation:
These are examples of homologous structures. These are derived from common ancestors , however, they do not necessarily perform the same function. A good example is the vertebrate forelimbs like the ones shown here.
These limbs all have the same basic pattern of bones. They inherited this pattern from a common ancestor, but they now have different functions. This is an example of divergent evolution
Related Questions
Identify the structures in the eukaryotic cell pictured on the right. Label A Label B Label C Label D Label E
Answers
Mandy made the following table describing the conditions required to form sleet and snow, but left something out. Which word should replace the X in the left column? (2 points)
Sleet Snow
Temperature in the cloud Below freezing Below freezing
Temperature X Above freezing Below freezing
State of water Mix of solid and liquid Solid
Group of answer choices:
A. above cloud
B. below cloud
C. on the ground
D. in the soil
Answers
Answer:
I know you're probably done with the quiz but I just wanna say the answer is B bc the other person got it wrong. I don't even understand how it would be in the soil lol.
The word that should replace the X in the left column is option C . on the ground
The following information should be considered:
The temperature should be below the cloud that calculated whether or not it becomes sleet or snow. For snow, it should have to be below freezing. For sleet it can be Above freezing since sleet is normally created in slightly warmer temperatures.Learn more: https://brainly.com/question/10046743?referrer=searchResults
Use hydrogen bonding to explain how the unique properties of water you observed emerge.
Answers
Due to the existence of hydrogen bonding between the hydrogen atom and an oxygen atom of a water molecule, it shows the following unique properties.
It is polar in nature.It has a high heat of vaporization and high specific heat.Its solid form is less dense as compared to its liquid form.It illustrates other properties like cohesion and adhesion.It acts as a universal solvent.How the charges are distributed in a water molecule?The distribution of charge is determined by the fact that the oxygen atom attracts electrons a bit more strongly than the hydrogen atom. This is due to the unequal sharing of electrons between the two different atoms.
This unequal sharing of electrons is responsible for obtaining a slight negative charge near the oxygen atom, while a slight positive charge near the hydrogen atom.
Therefore, it is well described above.
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A student observes that a mountain has a layer of coal at the top of it.
How did the coal come to be at the top of the mountain?*
Answers
Answer:
Explanation:
Please HELP!!!!!!!
Refer to the family pedigree shown here. In generation I, one parent is affected by the gene mutation and one parent isn't. In generation II, all three children are affected by the gene mutation. What can you conclude about this gene mutation?
Answers
Answer:
What can be concluded about this genetic mutation is that it is inherited as a dominant trait.
Explanation:
In the case that one of the parents has a mutation whose inheritance pattern is dominant —which is rare— all the descendants will have the same mutation, since this gene will necessarily be expressed.
A dominant allele is one whose presence produces the phenotypic expression of the characteristic it determines. When the mutation is dominant, it will always be expressed in the descendants.
Hungtinton's disease and achondroplasia are examples of mutations with an autosomal dominant inheritance pattern.
Of the 6 essential elements found
in every living thing, known as
'CHONPS', which of the following
are most prevalent?
Answers
Answer:
oxygen is the most prevalent in living organisms
Brainliest :)
2. THE DEPRESSION THAT RESULTS WHEN A VOLCANIC CONE COLLASPES OVER AN EMPTYING
WALEN
MAGMA CHAMBER IS A
Answers
Answer: A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully. When the magma chamber empties, the support that the magma had provided inside the chamber disappears.
Explanation:
PLEASE HELP ASAP
i will mark you brainiest if you get it correct for points!
Answers
Which biome receives 200 to 400 cm of rain per year?
Deciduous forest
Temperate rain forest
Taiga
Grassland
Answers
Answer:
Temperate rainforest
Explanation:
I took the test.
Answer:
B-temperate rain forest
Explanation:
cause i am smart
What must a single-celled organism do before it can reproduce
Answers
Answer:
In order to reproduce, an organism must make a copy of this material, which is passed on to its offspring. Some single-celled organisms reproduce by a process called In binary fission, material from one cell separates into two cells.
Explanation:
Name three parts of the world that have a great need for wastewater treatment,
and explain each in some detail.
Answers
Answer:
Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.
Explanation:
Hope that helps:)
Explain the differences between the structures of wind and insect pollinated plants and adjust the mark scheme.
Answers
Answer:
Unlike the typical insect-pollinated flowers, flowers adapted to pollination by wind do not produce nectar or scent. In wind-pollinated species, the microsporangia hang out of the flower, and, as the wind blows, the lightweight pollen is carried with it.
Explanation:
The ADP-ATP cycle is critical to producing cell energy. What do you know about this cycle? (More than one answer)
1. On average, 34-36 molecules of ATP are gained through the process of aerobic cellular respiration from
one glucose molecule.
2. When phosphate is added to ADP, free energy from food sources is stored in the phosphate bond,
producing ATP.
3. The hydrolysis of ATP to ADP is reversible.
4. When a phosphate group is removed from ATP by hydrolysis, ADP is produced and energy is stored for
cellular processes.
5. Only aerobic cellular respiration is used to break down glucose into ATP that is usable by the cell.
6. Glycolysis is the first step in both aerobic and anaerobic cellular respiration.
Answers
The ADP-ATP cycle is critical to producing cell energy, it is known about this cycle -
1. On average, 34-36 molecules of ATP are gained through the process of aerobic cellular respiration from one glucose molecule.2. When phosphate is added to ADP, free energy from food sources is stored in the phosphate bond, producing ATP.3. The hydrolysis of ATP to ADP is reversible.6. Glycolysis is the first step in aerobic and anaerobic cellular respiration.Cellular respirationIt includes biochemical reactions in which different organic compounds are entirely degraded, through oxidation, and converted into inorganic substances that serve as a source of usable energy for the cell.
It is of two two one takes place in the presence of oxygen, aerobic, and the other in absence of oxygen, anaerobic cell respiration. However, both processes involve glycolysis as their first step.
The production of energy requires ATP hydrolysis to the ADP where is the production of ATP takes place phosphate is added to ADP, free energy from food sources is stored in the phosphate bond.
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Which do scientists link to increased hurricane strength?
O A. Higher ocean temperatures in the arctic
B. Higher land temperatures in the arctic
C. Higher ocean temperatures in the tropics
O D. Higher land temperatures in the tropics
Answers
Answer:
Higher ocean temperatures in the tropics
Explanation:
apex :)
Higher ocean temperatures in the tropics are linked to increased hurricane strength. Therefore, option (C) is correct.
What is hurricane strength?Hurricane strength is a measure of the intensity of a tropical cyclone, which is a rotating storm system that forms over warm ocean waters in the tropics. The strength of a hurricane is measured using the Saffir-Simpson Hurricane Wind Scale, which ranks hurricanes from Category 1 (weakest) to Category 5 (strongest) based on their sustained wind speeds.
Hurricanes can cause significant damage due to their strong winds, heavy rainfall, storm surges, and flooding. The strength of a hurricane is influenced by a variety of factors, including warm ocean temperatures, low wind shear, and high humidity. As global temperatures continue to rise due to climate change, it is expected that hurricanes will become more frequent and more intense, which could have significant impacts on coastal communities and infrastructure.
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Help Please
What is the chemical reaction of carbon dioxide (or an example of a chemical reaction of carbon dioxide)
Also, does carbon dioxide create a reactant or product?
Answers
Answer:
co2 reacts with hydrogen in a reversible reaction to form carbonic acid
Explanation:
if u want the equation lem me know
I need help please ?!!!!
Answers
PLZ ANSWER THIS IS MY SECOND TIME POSTING AND IM WASTING MY POINTS SO PLZ HELP! HAVE A GREAT DAY! REWARDS WHEN SOMEONE ANSWERS CORRECTLY :D
Explain the importance of the location of female cones found in cone-bearing trees?
The female cones are heavier and bigger than male cones therefore; it needs to be in the bottom.
More animals eat the male cones therefore; it needs to be located at the top of the tree.
The female cones' location is important because male cones drop their pollen from the top of the tree.
More animals are attracted to female cones therefore; it is easier to reach them at the bottom.
Answers
Answer:
The correct answer is B.
Explanation:
Sorry, I got a little sidetracked. lol
Have a great day!
Answer:
The female cones' location is important because male cones drop their pollen from the top of the tree.
Explanation:
Their are both male and female cones. The male cones at the top contain pollen, and it falls to the bottom. The female cones at the bottom catch the pollen with their scales and uses it for fertilizing the soon-to-be seed.
:D
The atomic number is the ___.
• atomic mass
• number of neutrons
• protons plus the neutrons
• number of protons
Answers
Answer:
number of protons is the correct answer
Answer:
number of protons is the correct answer.
why
Thy law is are imp
important
Answers
Answer: The law is important because without the law we would have criminals all over the streets and people would just take things without paying people would just crash in the street there would be 12 yr old's dating 23 yr old's. So law is important so everything can be in its place and not be crazy and illegal
Which component of nerve cells contains the nucleus? (1 point)
dendrite
axon
neuron
cell body
Answers
The answer is the cell body
Explanation:
The nucleus is the main control center, and the cell body is very gooey on the inside so the cell wants to protect the nucleus so we can live.
The nucleus is present in the cell body.
Nerve cell:Nerve cell is a basic unit of communication. Each nerve cell contains axon, cell body, dendrites and terminal branches. There are about 85 to 200 billion neurons present.
Neurons are surrounded by a cell membrane.Neurons have a nucleus that contains a gene.It also have cytoplasm, mitochondria and other cell organelle.Neurons are of different types:
Unipolar neuronBipolar neuronMultipolar neuronNeurons are the chemical messenger. They contain nucleus which contain genetic material. Mitochondria produces energy. Neurons contain specialized structures and chemicals. They contain some specialized structures (synapse) and chemicals called neurotransmitter.
Therefore, The nucleus is present in the cell body.
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Lymph eventually ends up in the circulatory system.
A.
True
B.
False
Answers
Answer:
True
Explanation:
The respiratory system controls __________, and the circulatory systems controls __________. (5 points)
antibodies; digestion
breathing; blood flow
muscles; bones
nerves; senses
Answers
Answer:
respiratory- breathing
Circulatory- blood flow
Explanation:
Your model should clearly illustrate cellular division (mitosis) as well as differentiation into specialized cells
can someone tell me what to draw i really dont kno?
Answers
Cellular division (Mitosis) is the biological process whereby a parent cell breaks itself into different parts called daughter cells.
This process is important because it helps to divide cells so that they can:
Experience growthRepair broken cellsReproduce, etcCellular differentiation is the process of a cell going from one form to a more specialized cell.
A good example of this is the process of a fetus being formed from a single celled zygote.
Attached below is an image of cell differentiation and cellular division.
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All organisms utilize adenosine triphosphate (ATP) as their major source of energy. The molecules
of ATP and ADP (adenosine diphosphate) + P: (inorganic phosphate) form a cycle to allow for a
constant source of energy-rich ATP molecules.
Which of the following MOST accurately describes the role of ATP as a source of energy?
O ATP absorbs energy as it is converted into ADP + Pi.
ADP + P; release energy as they are converted into ATP.
O When ATP is converted into ADP + Pi , energy is released and used by the cell.
O When ADP + Pi are converted into ATP, energy is released and used by the cell.
Answers
Answer:
When ATP is converted into ADP + P energy is released and used by the cell.
Explanation: ATP contains energy, when a certain part breaks off it converts into ADP and releases energy for the cell tp use.
When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.
What is ATP?An organic substance called adenosine triphosphate (ATP) gives energy to a variety of biological functions in living cells, including muscular contraction, nerve impulse transmission, condensate dissolving, and chemical synthesis.
ATP is frequently referred to as the "molecular unit of currency" of intracellular energy transfer and is present in all known forms of life. It either transforms into adenosine monophosphate (AMP) or adenosine diphosphate (ADP) when absorbed in metabolic activities (AMP).
ATP is replenished by other processes. Every day, the human body recycles the equivalent amount of ATP to its own body weight. Additionally, it serves as a coenzyme and a precursor to DNA and RNA.
Therefore, When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.
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Which of the following scenarios is representative of parasitism? A.Tapeworms living in mammal's intestinal tract B.Remora fish attaching themselves to sharks C.Birds feeding on insects stirred up by grazing animals D.Birds eating scraps of food from crocodile's teeth
Answers
Answer:
A- Tapeworms living in a mammal's intestinal tract.
Explanation:
Parasitism is a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
Hope this helps!
Which surface erosion event does the most short- term damage?
Loss of topsoil from farmland.
Movement of rocks by glaciers.
Occurrence of mud slides after heavy rains.
Pollution of water sources caused by runoff.
Answers
Answer:
Occurrence of mud slides after heavy rains.
Explanation:
Soil erosion is defined as the removal of top soil from the land and it affects the fertility of the soil. It is also known as soil degradation.
Soil erosion has both short-term and long-term damage. Short-term damage of erosion includes the occurrence of mudslides after heavy rains which is called landslide. It is a short-term damage because landslides took long-duration to happen and when happened it can be shortly recovered using machines.
Hence, the correct answer is "the Occurrence of mudslides after heavy rains."
as the light intensity is increased the rate of photosynthesis is:. (A) increase. (b) decreased (C) same (D) none of these
Answers
Answer: Not 100% sure, however I think that the correct answer is A (increased).
Which process occurs within the mitochondria?
lactic acid fermentation
alcohol fermentation
glycolysis
Krebs cycle
Answers
Answer:
Krebs cycle.
It's also known as the citric acid cycle. It releases stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.
The biological process occurs within the mitochondria is: D. Krebs cycle
Cellular respiration refer to series of metabolic reactions typically occuring in all living cells, in order to produce energy in the form of adenosine triphosphate (ATP).
Basically, there are three (3) main stages involved in cellular respiration and these include:
Glycolysis.Krebs cycle.Electron transport chain.Krebs cycle is an aerobic reaction that takes place in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen. Also, the Krebs cycle produces carbon dioxide ([tex]CO_2[/tex]), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.
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Please Help! What molecules need to travel through ATP synthase to help it create ATP?
Answers
Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.
Explanation:
That's the answer but not all of it just pick out the actual answer.
The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.
What is RNA polymerase?RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.
Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.
Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.
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EXTRA PTS* Liquids and gases both do not have a definite ______
Answers
Answer:
shape
Explanation:
gases and liquids have very spread out particles and contain no particular shape. instead, they take the shape of whatever contains them. on the other side, a solid has a particular shape as the molecules are close together.