Author Question: Which of the following allows cetaceans to remain submerged for extended periods of time? A) Some ... (Read 335 times)

Mr.Thesaxman · **on:** Aug 22, 2018

Which of the following allows cetaceans to remain submerged for extended periods of time?

A) Some have less red blood cells per unit of blood volume as terrestrial animals.
B) They are faster breathers than terrestrial animals.
C) They can extract almost 90 of the oxygen in each breath.
D) They have a smaller blood volume per unit of body mass.
E) They have less myoglobin in their muscle tissue as terrestrial animals.

Question 2

The process of water molecules moving through semipermeable membrane from a less concentrated solution to a more concentrated solution is called ________.

A) conduction
B) convection
C) diffusion
D) mixing
E) osmosis