Author Question: A prairie grass may experience grazing herbivores, wildfires, droughts, deep snow, or blazing hot ... (Read 143 times)

armygirl · **on:** Jul 16, 2018

A prairie grass may experience grazing herbivores, wildfires, droughts, deep snow, or blazing hot days in the summer. Yet, those prairie grasses alive today are descendants of those that have survived these challenges and more.

From an evolutionary perspective, these sorts of environmental challenges are identified as A) herbivory.
B) predation.
C) selective pressures.
D) reproductive isolation.

Question 2

The pollination of an orange tree's flowers by honeybees best illustrates

A) amensalism.
B) parasitism.
C) commensalism.
D) mutualism.