2. why do frogs call?
a. that's the sound of their breathing.
b. male frogs call to attract females.
c. frogs call because they're hungry.
d. frogs call to tell people where they are.

Which type of neuroglia is found outside of the brain?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided