Why can't amphibians be entirely terrestrial?
A) Their limbs are not adapted to support their bodies on land.
B) They have a three-chambered heart that is not efficient enough for terrestrial life.
C) Their digestion is adapted for consuming aquatic prey.
D) Their reproduction requires water to allow fertilization and keep eggs moist.
E) They do not have lungs but instead have gills that require water for gas exchange.
D
You might also like to view...
Genes in other species are useful for finding genes in the human genome. Indicate whether the statement is true or false
The human medulla is actually quite variable, ranging from continuous to completely absent.
a. true b. false
Which of the following is a lobe-finned fish?
A. stingray B. lamprey C. eel D. lungfish E. shark
Groups of cells of the same structure and function are organized into ________.
Fill in the blank(s) with the appropriate word(s).