The first cell of a new individual is the

a. blastula.
b. gastrula.
c. embryo.
d. zygote.
e. gamete


D

Biology & Microbiology

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At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?

A) fertilization B) cleavage C) gastrulation D) coelom formation E) metamorphosis

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Genes for different traits located on the same chromosome in close proximity are called ________ genes

Fill in the blank(s) with correct word

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The electron transport chain provides the energy for

A) oxidative phosphorylation. B) substrate-level phosphorylation. C) beta-oxidation. D) photophosphorylation. E) anabolic reactions.

Biology & Microbiology

Which of the following enzymes breaks down complex carbohydrates?

a) amylase b) pepsin c) lactase d) lipase

Biology & Microbiology