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).
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Answer:
i would say they were skeptical
Explanation:
nobody really knows how test are going to work out, no one knows how intelligent marine life is at first. Im sure a lot of scientist doubted the idea of them being therapy animals
The portion of a sperm cell that contains digestive enzymes for penetrating he egg is called the acrosome.
I hope this helps.
Answer:
Hydrogen sulfide or methane
They use methane as an energy source
