A
the other options either cause people to die (c) or offend people (b and d)
S-IgA and IgG antibodies and cytotoxic T lymphocytes would recognize the virus and protect the body from re-infection. IgGs from the serum will move into the mucosa to be distributed on the alveolar epithelium and helps in preventing influenza pneumonia.
Answer: C. An amino group, carboxyl group and a side chain bonded to the central carbon atom.
Explanation: The amino acid structure consists of amino group, a carboxyl group (Acid group) and a side chain. These three groups are bonded to a central carbon atom.
Answer:
a
Explanation:
Which type of fossil does this image depict?
a: cast
b: carbon imprint
c: mineralized fossil
d: original-tissue fossil
The answer would be C. The mass of the object
