Water flowing back and forth across the gills of fish is known as _____

a. capillary movement
b. counter current exchange
c. deoxygenation
d. pharyngeal movement
e. gill slits


ANSWER: b

Biology & Microbiology

You might also like to view...

The lining of the mouth and anus originate from the ____, while the lining of the respiratory tract originates from the

____.

a. ectoderm; endoderm b. ectoderm; mesoderm c. endoderm; ectoderm d. endoderm; mesoderm e. mesoderm; endoderm

Biology & Microbiology

The region of the mantle below the crust is called:

a. the asthenosphere. b. the mantle. c. the lithosphere. d. the outer core.

Biology & Microbiology

Which term describes an estuary? a. Salt marsh b. All of these choices

c. Coastal wetland d. Mangrove wetland e. Marine nursery

Biology & Microbiology

Inversions suppress crossing over by providing a chemical imbalance because of breakpoints within certain genes

Indicate whether the statement is true or false

Biology & Microbiology