Which pigment is responsible for the phototropism responses of plants?

A) Ethylene
B) Xanthophyll
C) Phytochrome
D) Auxin
E) Chlorophyll


C

Biology & Microbiology

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Nematocysts in cnidarians are:

a. reproductive cells b. excretory organs c. sets of muscle cells d. circulatory cells e. defensive cells

Biology & Microbiology

Jess has A- blood type, has never received a blood transfusion, and never been pregnant. Antibodies against what blood antigens could be present in Jess' blood?

A) O and Rh antigens B) B antigens C) A antigens D) B and Rh antigens E) O antigens

Biology & Microbiology

Relaxation of the ________ releases urine from the body

Fill in the blank(s) with correct word

Biology & Microbiology

Which reaction represents cellular respiration?

A. Sugar + Oxygen ? Carbon dioxide+ Water + ATP B. Water + ATP ? Carbon dioxide + Sugar C. Carbon dioxide + Water + ATP ? Sugar + Oxygen D. Oxygen + Carbon dioxide ? Sugar + Water + ATP

Biology & Microbiology