Top Posters
Since Sunday
19
14
14
14
14
14
14
13
13
13
13
13
New Topic  
wrote...
Posts: 186
A month ago
According to this figure, which organisms have the highest concentration of PCBs, and why?



▸ phytoplankton, because they are at the bottom of the food chain

▸ smelt, because they are in the middle of the food chain

▸ herring gulls, because they are at the top of the food chain

▸ herring gulls, because they are at the bottom of the food chain
Textbook 
Campbell Biology: Concepts and Connections
Edition: 8th
Authors:
Read 127 times
3 Replies
Replies
Answer verified by a subject expert
wrote...
Posts: 214
Rep: 5 0
A month ago
Sign in or Sign up in seconds to unlock everything.
herring gulls, because they are at the top of the food chain
1
Related Topics
wrote...
A month ago
Thank you for answering so quickly
wrote...
A month ago
Was feeling bored, my pleasure Grinning Face with Smiling Eyes
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers.
Learn More
Improve Grades
Help Others
Save Time
Accessible 24/7
  115 People Browsing
Your Opinion
Where do you get your textbooks?
Votes: 98

Related Images
 544
 96
 64