Which of the following does NOT improve a plant's access to particular nutrients?
a. releasing amino acids into the soil
b. releasing carbohydrates into the soil
c. releasing enzymes into the soil
d. releasing carbon dioxide into the soil
Ans: d. releasing carbon dioxide into the soil
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Which of the following agents is a known cause of
mutations? a. nonionizing radiation b. ionizing radiation c. transposons d. chemicals in cigarette smoke e. all of these
Urine formed by a kidney collects in the ____ before being drained from the kidney by the ____ and transported to the _____.
Fill in the blank(s) with the appropriate word(s).
Antibodies perform all of the following functions EXCEPT ____
a. activate complement b. provide protection in secretions c. directly destroy and remove foreign antigens d. act as B cell receptors e. bind and neutralize blood toxins
A site where a substrate binds to an enzyme
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site