A blastomere is a ________ and a blastocyst is ________.

A) fetal organ produced by cleavage; an embryonic organ produced by cleavage
B) fetal membrane; an embryonic membrane
C) cell produced by cleavage; a hollow ball of cells
D) solid ball of cells; three-layered embryo


C) cell produced by cleavage; a hollow ball of cells

Biology & Microbiology

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Most known plant viruses are RNA viruses.

Answer the following statement true (T) or false (F)

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The synthesis of ____ is triggered when cells bind systemin

a. gibberellin b. auxin c. jasmonate d. cytokinin e. brassinosteroids

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What structures do barnacles use to capture their food?

a. antennae b. shells c. legs d. heads e. siphons

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Fructose and glucose are

a. able to combine to form sucrose. b. structurally different. c. monosaccharides. d. simple sugars. e. all of these.

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