Sea stars are classified in which of the following Echinoderm classes?

a. Asteroidea
b. Ophiuroidea
c. Echinoidea
d. Crinoidea


a. Asteroidea

Biology & Microbiology

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What happens to the glucose molecule during glycolysis?

a. It is converted to acetyl CoA. b. It is converted to CO 2 . c. It is converted to two pyruvate molecules. d. It is converted to water.

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An individual's ____ determines its observable ____

a. phenotype; genotype b. genotype; phenotype c. gene location; allele d. heterozygote; homozygote e. homozygote; heterozygote

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How many natural elements exist on Earth?

a. 100 b. 112 c. 88 d. 96 e. 110

Biology & Microbiology

In cladistics, ________ is(are) the primary criterion used to classify organisms.

A. observable traits B. shared, derived traits C. mating behavior D. ecological niche E. All of the answer choices are correct.

Biology & Microbiology