× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
simply--steve simply--steve
wrote...
Posts: 700
Rep: 0 0
6 years ago
Polar bears have black skin. This characteristic helps them deal with cold stress by
 a. increasing the amount of air trapped next to the skin.
  b. increasing the absorption of radiant energy from the sun.
  c. increasing the insulation provided by subcutaneous fat.
  d. reducing heat loss by restricting blood flow to the skin.
Read 50 times
1 Reply

Related Topics

Replies
wrote...
6 years ago
B
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1211 People Browsing
Related Images
  
 782
  
 567
  
 323