1. What is the most fundamental basis for animal behavior? a. neurotransmitter
b. hormones
c. activation or deactivation of neural pathways
d. genetics

2. which of the following is an adaptation for bipedalism?
a. foramen magnum located at the back of the skull
b. valgus angles at the knee
c. opposable big toe
d. prehensile tail

3. Land animals possess a variety of adaptations that minimize water loss during extraction. whichh of the following is not an example of such an adaption?
a. amphibians have kidneys similar in structure and function to those of marine fish
b. bird and mammals have a high osmotic concentration of urine compared to blood
c. the excretory system of reptiles in dry environments empty into the cloaca
d. marine reptiles excrete salt from glands near their eyes.

4. Which of the following is not a character unique to higher chordates?
a. amniotic eggs
b. notochord
c. jaws and paired appendages
d. endothermy

Please help a girl out