Which of the following signal molecules binds to nuclear receptors?

a. Thyroid hormone
b. Vitamin D3
c. Retinoic acid
d. Estrogen


Ans: d. Estrogen

Biology & Microbiology

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. The bacteria in the area around the NW Eifuku volcano can be described in which of the following ways?

a. heterotroph, apex predator b. photoautotroph, secondary consumer c. chemoautotroph, primary producer d. photoautotroph, primary producer

Biology & Microbiology

According to research, which of the following improves the effectiveness of a conservation preserve?

a. surrounding the preserve with a buffer zone b. being shaped with multiple thin arms c. having small rather than large preserves d. including only a few species in each preserve

Biology & Microbiology

Acromegaly is the result of excessive secretion of which hormone by adults?

a. melatonin b. triiodothyronine c. thyroxine d. testosterone e. growth hormone

Biology & Microbiology

The building of a large organic molecule from small subunits involves multiple ________

A) hydrolysis reactions B) osmotic reactions C) dehydration synthesis reactions D) hydrosynthetic reactions

Biology & Microbiology