Zinc competes with ______ for absorption.
What will be an ideal response?
copper
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If an assumption for the Hardy-Weinberg equation is violated, what does this mean?
A. This means the allele frequencies or genotype frequencies are undergoing evolutionary change. B. This means that the population is adapted to its environment. C. This means that mutations are increasing in frequency in the population. D. This means an allele is fixed in the population.
Which of the following substances is secreted by an endocrine gland?
a. Tears b. Breast milk c. Wax d. Saliva e. Hormones
The rapid development of knowledge regarding how to manipulate and analyze DNA, including techniques for modifying its structure, has led to the new field in biology known as
A) graphic display. B) DNA splicing. C) recombinant DNA technology. D) genetics. E) electrophoresis.
If a hiker picked up a mollusk on a trail in a rain forest, what class would it belong to?
A. Cephalopoda B. Bivalvia C. Gastropoda D. Polyplacophora