A human embryo is known as a fetus after ________ weeks

A) 16 B) 8 C) 12 D) 2 E) 4


B

Biology & Microbiology

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Gene families are created when

A. genes duplicate. B. exons converge. C. viral infections occur. D. introns are not removed from the mRNA after transcription. E. both exon convergence and intron splicing.

Biology & Microbiology

What is a colonial green algae that forms the whirling spheres found in fresh water?

a. nori b. Porphyra c. kelp d. Volvox e. Ulva

Biology & Microbiology

The cells of sprinters' muscles often use which process to form ATP?

a. aerobic respiration b. lactate fermentation c. pyruvate fermentation d. oxidative phosphorylation e. gluconeogenesis

Biology & Microbiology

The entire DNA sequence of a species is called its ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology