A(n) ________ is a regulatory molecule that is secreted into the blood by an endocrine gland.

A. G protein
B. antibody
C. enzyme
D. hormone
E. neurotransmitter


Answer: D

Biology & Microbiology

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Which of the following statements regarding polarity in an egg is INCORRECT?

a. The animal pole forms the anterior end of the animal. b. The vegetal pole forms the posterior end of the animal. c. The animal pole forms the animal's gut. d. The vegetal pole forms internal structures. e. Polarity relates to development of body axes.

Biology & Microbiology

The genetic makeup of a particular trait in an individual is its

a. dominance. b. heterozygosity. c. genotype. d. phenotype. e. filial.

Biology & Microbiology

________ fatty acids are liquid at room temperature, while ________ fatty acids are solid

Fill in the blank with correct word.

Biology & Microbiology

Carbon dioxide is transported in human blood primary in which of the following ways?

A. As oxyhemoglobin B. As bicarbonate ions C. Attached to plasma proteins D. Attached to the amino groups of hemoglobin E. Attached to the heme groups of hemoglobin

Biology & Microbiology