Answer:
A. These homologous structures indicate that these four organisms all share a common ancestor.
Explanation:
Homologous structures mean the organs will have similar structure, but not necessarily function (human arm vs whale's flipper). While analogous structures are similar in function but not structure (wings of an airplane vs wings of a bird). Since the question states that they are similar in skeletal structure, we know they must be homologous structures, thereby eliminating B and C. D is not a choice because the question does not provide anything about the order of evolution. Therefore the answer is A. These homologous structures indicate that these four organisms all share a common ancestor.
The cell is the smallest part of a human that is still
an element
b
living
с
a theory
d
an egg
PLEASE HELP ME, it's URGENT!! TO GET A BRAINLIEST FROM ME, PLEASE EXPLAIN WHY YOU CHOSE THAT OPTION
The breaking down of starch into its component sugars would be an example of
A. Catabolism
B. Cell Division
C. Protein Synthesis
A protein being built from individual amino acids would be an example of
A. Anabolism
B. Catabolism
C. Cell Division
Answer:
The breaking down of starch into its component sugars would be an example of
✔ catabolism
A protein being built from individual amino acids would be an example of
✔ anabolism
A molecule of sugar being broken apart to release energy would be an example of
✔ catabolism
Explanation:
ed2021
The breaking down of starch into its component sugars would be an example of Catabolism. A protein being built from individual amino acids would be an example of Anabolism.
What is metabolism?
Metabolism refers to the chemical processes that occur within a living organism in order to maintain life. These processes include the conversion of food into energy and the use of that energy to power the organism's growth, reproduction, and other functions.
Metabolism can be further divided into two main categories: catabolism and anabolism.
Catabolism is the process by which the body breaks down molecules to release energy. It includes the breakdown of complex molecules such as carbohydrates, fats, and proteins into simpler molecules that can be used by the body's cells for energy. This process produces waste products such as carbon dioxide and water which are eliminated from the body.
Anabolism is the process by which the body uses energy to build molecules. It includes the synthesis of complex molecules such as proteins, nucleic acids, and polysaccharides from simpler molecules. Anabolic reactions consume energy, rather than release it, and they require precursors and enzymes.
Learn more about metabolism, here:
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Plzz help! Look at my previous question.
Ok, hang on. I am gonna go look at it...
The speed of a wave is 40 m/s. If the wavelength is 80 centimeters, what is the frequency of the wave?
ill give brainly pls help
How are mitchondria and chloroplasts similar to prokaryotes ?
A. They use oxygen to produce ATP during aerobic respiration .
B. They all contain membrane-enclosed organelles .
C. They are similar in size and contain their own DNA .
D. They are autonomous, meaning they can live on their own .
please answer ill give brainly
A.0.15mm
Explanation:
carryonlearningOf the chromosomes in your cells, how many are sex chromosomes?
1
2
3
4
two, X and Y
XX is typically female, XY is typically male.
Why do organisms that fertilise internally tend to produce less eggs?
Answer:
Explanation: Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young. ... Even though fewer offspring are produced through this method, their survival rate is higher than that for external fertilization.
What is CRISPR-Cas-9? a A medical device made of titanium that cuts genes. b A metal tool used for cloning animals. c A gene editing tool used to cut specific genes
Answer: C. A gene editing tool used to cut specific genes.
Explanation:
CRISPR is simply a family of the sequences in DNA thst are found in certain organisms like bacteria. They are used in the detection and also in destroying DNA.
The CRISPR-Cas9 enables geneticist to
remove or alter parts of the gene. It is a simple, and precise method for manipulating genes.
Answer:
C. A gene editing tool used to cut specific genes.
Explanation:
Hope this helps
wtfk is pepsin? somebody explain this statement to me please
Answer:
So pepsin is basically a gastric juice which is produced in the stomach.
Help me please!!! Will mark brainstest
Which example best represents an object with balanced forces acting upon it? Answers in the picture
Answer:
The answer is B. A book sitting on a high shelf.
Explanation:
Because the book is balanced, and something that is balanced stays balanced until you move it.
3) Homologous pairs of chromosomes are not found in
a) zygotes
b) gametes
c) body tissue cells
Answer: gametes
Explanation:
i think this is the correct answer i’m learning this in school right now and another source said that was the correct answer.
Please help me with my homework .I really do not understand these questions ,help!
Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be produced in oth
Come up with five ethical guidelines for research. Write statements that reflect your own views of
what is right and wrong. If you really love animals, an example of one guideline might be "No
animals may be used in research of any kind." However, when coming up with these guidelines, be
thoughtful about what they really mean. Think of the information you read about earlier. Try to
phrase your guidelines in a way that would allow research that you think would be beneficial to
still be done. You may find that certain circumstances may cause you to rethink your own ethics!
Answer:
No
Explanation:
Why does Jupiter not have a very strong pull on
the Earth?
Answer:
it doesn't have a strong pull because
Explanation:
since the sun is much bigger the gravitational pull is keeping Jupiter from pulling earth closer although it is still pulling on the planets around it
Juan picks up a steel utensil and immediately drops it because it's extremely hot. How does the reflex arc work to protect Juan from a worse burn?
Answer:
in a reflex arc, the (sensory) neuron carries the action potential from the (sense organ to the brain)
biology need help asap
Answer:
It's deoxyribose or ribose (depending on whether it is DNA or RNA). They are carbohydrates
The structure is called nucleotide
describe the two main phases of the cell cycle
Answer: The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.
What type of mutation are the most harmful to an organism
Answer:
frameshift mutations
Explanation:
v-FLIPs are viral proteins that were first identified as modulators of apoptosis; they contain two death effector domains, which are also found in some initiator caspases such as procaspase-8. These v-FLIP proteins can be recruited to the DISC through the binding of the death effector domain to similar domains in the adaptor proteins but are otherwise catalytically inactive. What do you think is the effect of v-FLIP expression in the host cell?A. It promotes apoptosis mainly via the extrinsic pathway.B. It inhibits the extrinsic pathway of apoptosis.C. It activates only the mitochondrial pathway of apoptosis.D. It inhibits the intrinsic pathway of apoptosis.E. It enhances the caspase cascades in both the intrinsic and extrinsic pathways.
Answer:
B. It inhibits the extrinsic pathway of apoptosis
Explanation:
Apoptosis is a cellular pathway that leads to programmed cell death. Viral FLICE-inhibitory proteins (FLIPs) bind to the adaptor proteins and block the interaction between the DISC complex with the caspase-8 protease enzyme, which triggers apoptotic cell death. In consequence, cells become resistant to Fas-mediated apoptosis, a pathway initiated by the FADD protein which is known to recruit caspase-8.
Desmond is wearing a purple shirt to school. Which colors are being absorbed by the shirt to make it look purple? A purple, blue, yellow, red, and green B red, orange, yellow, green, and blue C blue, purple, red, green, and orange D orange, yellow, blue, purple, and green
A big-toed elephant with long eyelashes has children with a small-toed elephant with short eyelashes. All of the
children have big toes and long eyelashes.
1. What are the genotypes of the parents?
2. If two children mate, what phenotypic ratios are expected in the grandchildren?
Answer:
the big toed elephant and long eyelash is TT (t being toes), and EE (eyelashes), and the other parent is tt, ee.
part 2, the gran kids will have 3/4 chance to be big eyelash and big toenail and 1/4 to be small eyelashes and small toenails.
Explanation:
6. What essential substances are stored by your bones
(1 Point)
Phosphorus
Calcium
red blood cells
O white blood cells
(a) Identify the cellular location where PDC is most active.
Answer:
The mitochondria
Explanation:
Answer:
Explanation:
The mutation will result in the translation of an inactive/nonfunctional Trp-T enzyme.
• The mutation will result in no translation of the Trp-T enzyme.
• The mutation will result in no/reduced production of I3PA
How are coffee farms a threat to migrating birds?
I’ll mark as Brainliest!
How can we decrease the amount of atmospheric CO2?
As well as the bathroom, in what other room in the home is hand washing particularly important to reduce the spread of disease?
The first planet to be discovered using mathematical prediction was:
Neptune
Uranus
Jupiter
Saturn
Answer:
Neptune :)
Explanation:
Answer:
A. Neptune
Explanation:
Bat wings, a human hand, and a whale flipper are all ________________structures. Explain WHY?
Butterfly wings and bat wings are examples of _______________ structures.
The mouths of horseflies and mosquitoes are examples of _______________ structures.
A _______________ structure is one that does not currently have a function in the organism. Give an example.
Comparing structures of embryos is an example of __________________.
If embryos share a common structure, what does that say about their evolutionary relationship?
How would the protein sequence of two closely related species compared to the protein sequences of two unrelated species? Give an example of each here.
Answers:
1.blank: Homologous
why?: They all have similar structures passed on from a common ancestor. Although they all have different functions now, they still all have the same basic pattern of bones.
2.blank: Analogous
why?: Butterflies and bats are both unrelated organisms but they both have similar structures. However, unlike homologous structures, analogous structures do the same job (help the organism fly) but are structured entirely differently because they evolved in the two species independently and did not share a common ancestor.
3.blank: Homologous
why?: (see question 1 ^)
4.blank: Vestigial
example: An example of a vestigial structure is a human's tail bone.
why?: Over time humans evolved and our tail bones shrank as we adapted. While we still have one, it serves no purpose in our lives today.
5.blank: Embryology
why?: Embryology is the branch of science and medicine that is focused on the development and study of embryos. Scientists in this field study the prenatal development of gametes, fertilization, and development of embryos and fetuses.
6.answer: They share a common ancestor
why?: Embryos of many different species can show evidence of sharing a common ancestor based on the similarities and structures of them all. Similar structures during development support common ancestry. For example, all vertebrae embryos develop gill slits and tails but not all develop into those structures. Over time as organisms evolved their structures changed with them.
7.answer: If the protein sequence of two species is closely related the two species are most likely similar, but the protein sequences of two unrelated species are not similar meaning these two species are very different. By comparing the positions of amino acids on protein chains you can determine how similar the species are. The less different the positions are, the more alike and related they are.
why?: For example, humans and chimpanzees only have one position on the amino acid chain where they are different but if you compare humans and moths there are 31 different positions.
I included some extra information in this for you so you hopefully can learn something too! I hope this helps and if you have any questions on what I put or anything else, let me know. :)