Amphioxus is an example of a

A. tunicate.
B. reptile.
C. hagfish.
D. amphibian.
E. lancelet.


E. lancelet.

Biology & Microbiology

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Rank the following in order from most general to most specific: 1. gametic isolation 2. reproductive isolating mechanism 3. sperm-egg incompatibility in sea urchins 4. prezygotic isolating mechanism

A) 2, 3, 1, 4 B) 2, 4, 1, 3 C) 4, 1, 2, 3 D) 4, 2, 1, 3 E) 2, 1, 4, 3

Biology & Microbiology

The hexameric model of DNA unwinding proposes that:

A. DNA strands are separated prior to helicase binding. B. one dimer is responsible for ATP hydrolysis. C. two dimers rotate the responsibility of ATP hydrolysis. D. three dimers rotate the responsibility of ATP hydrolysis. E. dimer conformational changes drive ATP hydrolysis.

Biology & Microbiology

Varicella is a member of the herpes family of viruses and produces a latent infection

Indicate whether this statement is TRUE or FALSE.

Biology & Microbiology

The formation of fat from excess glucose is called ____

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

Biology & Microbiology