Multiple Choice
What was the overall effect of removing the predatory sea star Pisaster ochraceus from its food web?
A) Species richness decreased rapidly.
B) Species richness increased rapidly.
C) Species richness stayed the same.
D) Another predator moved to the top position in the food web.
E) Mussel populations decreased.
Correct Answer:

Verified
Correct Answer:
Verified
Q70: Thomas Bell and his colleagues studied bacterial
Q71: How has the grasshopper mouse coevolved to
Q72: Species richness on an island is determined
Q73: Which trophic level would be best represented
Q74: Allopatric populations that are morphologically _ use
Q76: A keystone species has a greater effect
Q77: A milkweed plant discourages consumption by herbivores
Q78: Interference competition and exploitative competition are both
Q79: Why do frequent moderate intensity disturbances increase
Q80: What is the difference between a decomposer