Reptiles evolved scaly body coverings as a means for
A) flight.
B) protection from drying out.
C) heat production.
D) insulation.
E) courtship rituals.
B
Biology & Microbiology
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Which element is found as a component of
amino acids, proteins, chlorophyll, nucleic acids, and coenzymes?
a. nitrogen b. potassium c. sulfur d. phosphorus e. magnesium
Biology & Microbiology
Mendel concluded that each pea has two units for each character, and each gamete contains one unit. Mendel's unit is now referred to as a:
A: gene. B: character. C :trait. D: genotype. E: phenotype.
Biology & Microbiology
A large portion (45%) of the human genome is composed of
A. templates. B. introns. C. pseudogenes. D. exons. E. transposons.
Biology & Microbiology
Decomposition reactions are commonly ________ reactions.
A. endothermic B. exchange C. exothermic D. anabolic E. dehydration
Biology & Microbiology