Answer:
I can tell you now that its definitely not D., C, or E. However, I'd debate that it'd be either A. or B.
Me, I'd go with b, but it could be either a or b.
Altruism has NOTHING to do with bee's as it is the belief of putting yourself aside for the well-being of others, but in biology, it refers to behavior by an individual that increases the fitness of another individual while decreasing the fitness of the actor.
Hearing has NOTHING to do with the reproductive system.
Nothing is to too small to have functional ears.
D,E, and C don't make sense.
Explanation:
Antibodies have a variable region that binds to a specific antigenic determinant.
Antibody
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the pathogen, called an antigen. Each tip of the "Y" of an antibody contains a paratope (analogous to a lock) that is specific for one particular epitope (analogous to a key) on an antigen, allowing these two structures to bind together with precision. Using this binding mechanism, an antibody can tag a microbe or an infected cell for attack by other parts of the immune system or can neutralize it directly (for example, by blocking a part of a virus that is essential for its invasion).
To learn more about the antibody refer here:
brainly.com/question/13981216
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Answer:
A. The hydrogen atoms have a partial positive charge and are attracted to the oxygen atom in another molecule, which has a partial negative charge.
Explanation:
I just took the quiz. That was the correct answer.
The process is when the magma cools and make crystals
