I just took the review the correct answer is D, I, II, III, and IV
the color of the light
photopigment are unstable pigments that undergo a chemical change when they absorb light
They are both made up of protons,neutrons and elements
Answer:
The third line of defence against pathogenic invasion is the adaptive immune response, which has two key qualities: It is specific (it can differentiate between specific microorganisms and respond accordingly) It is adaptive (it can produce a heightened response upon re-exposure - in other words, it has memory)
Explanation:
