Mercury is known to biomagnify in food chains, in the same manner as DDT. Based on your knowledge of biomagnification of DDT, which organism would you expect to contain the most mercury in a contaminated lake?
A) algae and plants
B) large fish
C) small fish
D) fish-eating birds
E) aquatic insects
Answer: D
You might also like to view...
How much does a sample of 5.75 mol diethyl ether, C4H10O, weigh?
A) 5.75 g B) 12.9 g C) 74.1 D) 426
Which is not a part of Scandanavia
A. Norway B. Denmark C. Sweden D. Finland
What are two examples of the size scale and the time scale in Earth science that are at opposite ends of the spectrum?
Spatial scales in Earth science can range from the atomic level to the size of the entire Earth. Spatial scales in Earth science can range from the size of a single rock to large portions of the universe. Time scales in Earth science can range from the fraction of a second that it takes lightning to strike to the 4.6 billion years that encompasses Earth's entire history. Spatial scales in Earth science can range from the atomic level to large portions of the universe. Time scales in Earth science can range from the fraction of a second that it takes lightning to strike to the billions of years the universe has been in existence.
Which region is not threatened by desertification?
A) Africa B) Asia C) Australia D) North America E) All of the above are threatened by desertification.