The biological species concept cannot be applied to bacteria because:

A) they never exchange genes that would allow for speciation.
B) they do not reproduce sexually.
C) their DNA is too similar.
D) their features are too small to be able to distinguish one kind from another.


Answer: B

Biology & Microbiology

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The hormone oxytocin stimulates contraction of:

A. the smooth muscles in the walls of blood vessels B. the muscles of the stomach wall C. uterine muscles D. skeletal muscles

Biology & Microbiology

Explain three ways in which other molecules regulate enzymes

What will be an ideal response?

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If a chromosome's gene sequence is represented by the letters A-B-C-D-E-F-G before modification and A-B-C-D-LM-

N-O-P-E-F-G afterward, this would be an example of ____. a. inversion b. deletion c. duplication d. translocation e. cross over

Biology & Microbiology

The generation of ATP by the movement of protons down their concentration gradient, occurs in:

a) mitochondria. b) chloroplasts. c) Golgi apparatus. d) Both a) and b) are correct. e) a), b), and c) are correct.

Biology & Microbiology