Answer:
The bee at the right is looking for nectar in a flower. While looking for food, this bee is also pollinating the flowers by transferring pollen from the ___anthers__ on one flower to the __stigma__ on another flower.
Explanation:
Mutualism. e.g. oxpecker and zebra
commensalism. e.g. remora fish and sharks
parasitism. e.g. tapeworms and cow
Answer:
The peptide:MHC class II complex can be recognized by antigen-specific armed ... Some microbial antigens can activate B cells directly in the absence of T-cell help. ... 9-1. The humoral immune response is initiated when B cells that bind antigen ... cells presenting these internal peptides can then activate the B cell to make . Explanation:
Answer:
False.
Explanation:
NADP does not convert testosterone to estradiol. This oxidation is done by a steroid 17-a-hydroxysteroid dehydrogenase.
This oxidation is essential for stability of hormone: it helps to regulates the elevation of Testosterone in women,subduing the manifestation of male sexual characteristics,
and
for preventing autoimmune diseases.
<u>The oxidation involved two basic steps of reaction, controlled by two different enzymes.</u>
<u>NADP is a Co- factor, when in reduced form( NADPH) is used in Calvin cycle, of light independent reaction of photosynthesis, and in Nucleic acid and triglycerides synthesis</u>.
It has nothing to do with conversation of Androgen( testosterone to Estradiol.
