Amphibians often use ____ as a respiratory surface

a. skin
b. a tracheal system
c. internal gills
d. external gills
e. scales


ANSWER: a

Biology & Microbiology

You might also like to view...

Discuss antimicrobial susceptibility testing and the use of minimal inhibitory concentration (MIC) values

What will be an ideal response?

Biology & Microbiology

Which population size exhibited the greatest amount of variation in allele frequency during these simulations?

a. 100 b. 1000

Biology & Microbiology

Which system produces blood cells?

a. endocrine b. skeletal c. muscular d. defense e. integumentary

Biology & Microbiology

The Calvin Cycle oxidizes the light reaction product ________ to _________.

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

Biology & Microbiology