Lessons 26 Lecture notes Flashcards
1
Q
Mammals are the only animals that have —–
A
hair at some point in their life
2
Q
Aquatic mammals have special structures for
A
breathing- blowholes, special valves in their nostrils, etc.
3
Q
All mammals reproduce via
A
internal fertilization
4
Q
Which two orders do not have a placenta?
A
marsupials and monotremes
5
Q
All mammals have two pairs of
A
limbs- 2 forelimbs, 2 hindlimbs
6
Q
Birds and mammals are both
A
endothermic
7
Q
blubber is for
A
insulation, energy, and buoyancy
8
Q
hair is for
A
insulation, protection, regulation (of body temp.), sensing, and sometimes for camouflage
9
Q
Do bears hibernate?
A
no, they enter a period of torpor
