Top Posters
Since Sunday
r
3
y
2
e
2
p
2
a
2
c
2
o
2
m
2
k
2
s
2
P
2
i
2
New Topic  
Alamojay Alamojay
wrote...
Posts: 1898
9 years ago
Why are there so few ecosystems with more than four levels of consumers?
A) because biomass decreases by about 90% at each trophic level moving up
B) because top consumers compete with and kill each other with increasing population size
C) because consumers at these highest trophic levels typically form social groups that stop reproducing at high densities
D) because predators at the highest trophic levels simply are not intelligent enough to hunt other top predators
Textbook 
Environmental Science: Toward A Sustainable Future

Environmental Science: Toward A Sustainable Future


Edition: 12th
Authors:
Read 727 times
1 Reply
Super Cuban Dude
Smiling Face with Open Mouth
Replies
Answer verified by a subject expert
JesuisMelJesuisMel
wrote...
Top Poster
Posts: 2453
9 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here

Related Topics

Alamojay Author
wrote...

9 years ago
Brilliant
wrote...

Yesterday
Thanks
wrote...

2 hours ago
This helped my grade so much Perfect
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1360 People Browsing
 122 Signed Up Today
Related Images
  
 348
  
 797
  
 299
Your Opinion

Previous poll results: Who's your favorite biologist?