Four of the following describe a bilaterally symmetrical animal. Which one is the exception?

a. It has left and right sides.
b. It usually displays cephalization.
c. It produces mirror images regardless of the number of "cuts" through the central axis.
d. It usually has a three layer body plan.
e. It can be a deuterostome.


ANSWER: c

Biology & Microbiology

You might also like to view...

A survivorship curve with uniform death rates over time is most likely to be a type _______ curve.

A. I B. II C. III D. IV E. V

Biology & Microbiology

Early in the infection with HIV, most virions bind to the host cell using CCR5 as a coreceptor. As the infection progresses, the HIV population evolves to use an alternate coreceptor. What is the alternate coreceptor these X4 viruses utilize?

A) Tetherin B) CCR5? C) vpu D) TRIM5? E) CXCR4

Biology & Microbiology

Which structures make up the male reproductive whorl of a flower?

a. the sepals b. the carpels c. the stamens d. the receptacles

Biology & Microbiology

Why is the concentration of carbon dioxide in Earth's atmosphere rapidly increasing?

A) More photosynthesis is occurring. B) Earth is warming. C) The oceans are cooling. D) The ozone layer has become much thinner. E) Many human activities release carbon dioxide.

Biology & Microbiology