Author Question: Currently, approximately ________ of cultivated acreage in the United States and Canada is planted ... (Read 108 times)

Marty · **on:** Jul 14, 2018

Currently, approximately ________ of cultivated acreage in the United States and Canada is planted for animal consumption

A) 5 B) 15 C) 30 D) 50 E) 65

Question 2

From the perspective of energy, which of the following is the most efficient trophic level?

A) primary producer
B) primary consumer
C) secondary consumer
D) tertiary consumer
E) decomposers