C. is the correct answer - <span>The sequence of amino acids in the polypeptide chain
Amino acids are subunits of proteins, they are the monomer ( building blocks) of proteins also called polypeptides. Each protein has a unique set of amino acids chain that make them distinctive.</span>
Answer:
The plasma membrane is a phospholipid
Explanation:
The plasma membrane is phospholipid bilayer. The layers are two and are continuous flat sheets. They have proteins and cholesterol embedded in them, for facilitating the transport of compounds and maintanng fluidity. The lipid bilayer is both hydrophobic and hydrophillic.
Answer:
See the complete question and the answer below
Explanation:
<em>Suppose that you and a friend see brightly colored pigeons like these at a nature park. Because pigeons are usually gray and white, you both wonder where these colors came from. Suddenly, your friend says, "I have a theory. These birds must get their colors from eating food that has the same colors."Is your friend's explanation a scientific theory? Give reasons to explain your answer</em>
<em>The answer is </em><em>no</em><em>. My friend's explanation is not a scientific theory.</em>
A scientific theory is a tested and proven phenomenon. In order for a statement to become a theory, it must have been tested through experimentation by several independent researchers and found to be true. A mere statement based on perception with little or no experimental test is just a hypothesis and not a theory.
Instead of my friend to have said, "I have a theory", he should have said, "I have a hypothesis".
Answer:
The statement that best explains the endosymbiotic theory is that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the fact that mitochondria have their own DNA and replicate via binary fission (option B).
Explanation:
The endosymbiotic theory is due to the evolutionary biologist Lynn Margulies, who through his postulates tried to establish evidence of the origin of eukaryotic cells, by incorporating a prokaryotic cell into the interior of others.
Mitochondria -besides chloroplasts- are one of the examples that support the endosymbiotic theory. Both mitochondria and chloroplasts have characteristics and behavior similar to that of a bacterium (prokaryote):
- They have their own circular double-stranded DNA.
- They have 70S ribosomes.
- Protein synthesis capacity.
- They have membranes that allow them to carry out their functions.
- Their division is carried out by binary fission.
These characteristics support that some organelles were at some time independent prokaryotic cells that were incorporated into other cells, by endocytosis.
Learn more:
Importance of endosymbiotic theory brainly.com/question/583859
The answer is A it takes a million of years to form
