In addition to a vertebral column, all vertebrates have

A. scales.
B. gills.
C. an open circulatory system.
D. a tunic.
E. a distinctive head or skull.


Answer: E

Biology & Microbiology

You might also like to view...

An acoelomate is an animal that:

A. has a coelom B. has a pseudocoelom C. has both a coelom and a pseudocoelom D. has neither a coelom nor a pseudocoelom E. has a coelom during early development but later loses it

Biology & Microbiology

Which of the following structures becomes

part of the placenta?

a. chorion b. amnion c. blastocoel d. yolk sac e. more than one of these becomes part of the placenta

Biology & Microbiology

Similar orders are placed in the same class

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

____ are accessory pigments in photosynthesis that reflect blue and red wavelengths best.

A. Carotenoids B. Phycobilins C. Anthocyanins D. Chlorophyll b E. Chlorophyll a

Biology & Microbiology