Top Posters
Since Sunday
w
3
w
3
e
3
3
r
3
b
2
M
2
V
2
f
2
c
2
c
2
K
2
New Topic  
tyressjones tyressjones
wrote...
Posts: 4034
Rep: 6 0
7 years ago
Aquatic animals, in general, face more of a challenge when extracting oxygen from their environment than do terrestrial animals. Why?
A) Less oxygen is available in water than in air.
B) Less energy is required to ventilate gills than lungs.
C) Aquatic animals lose ions to the environment.
D) Gills have thinner cells than alveoli.
E) Parabronchi have twice the metabolic rate of spiracles.
Textbook 
Biology: Life on Earth

Biology: Life on Earth


Edition: 10th
Authors:
Read 141 times
2 Replies
Replies
Answer verified by a subject expert
skeledentskeledent
wrote...
Top Poster
Posts: 1329
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

tyressjones Author
wrote...
7 years ago
Yes! Correct again Slight Smile
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  509 People Browsing
Related Images
  
 289
  
 6584
  
 337
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 437

Previous poll results: Do you believe in global warming?