Answer:
Antigens are molecules capable of stimulating an immune response. Each antigen has distinct surface features, or epitopes, resulting in specific responses. Antibodies (immunoglobins) are Y-shaped proteins produced by B cells of the immune system in response to exposure to antigens.
Answer:
C
Explanation:
an impure substance made through chemical process
Answer:
The answer to your question is: the first option
Explanation:
Meter is a unit of length in the SI, international system of units. Its symbol is m.
Nanometer is equivalent to 10⁻⁹ meters, as its name says it is used to measure extremely small particles.
-To solve this problem we use a rule of three.
1 meter ⇒ 10⁹ nanometers
x meters ⇒ 670 nanometers
Simplify
x = (670 x 1)/( 10⁹)
x = 6.7 x 10 ⁻⁷ meters
I think it would be the sun because it’s the one giving energy to most things, and if you haven’t answered it yet you can put the sun because it’s giving energy to the plans and the environment and it’s the the sun was the effect of the whole thing, sorry if I didn’t help
Answer:
option B is a right answer
Explanation:
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