Question

question 42: the smallest level of ecological organization is an
a) organism
b) ecosystem
c) population
d) community
question 43: interdependence refers to the reliance of organisms on one another and their ____ for survival.
a) energy
b) environment
c) populations
d) communities

Explanation:

For Question 42, the levels of ecological organization from smallest to largest are organism, population, community, ecosystem. So the smallest is organism. For Question 43, interdependence in ecology is about organisms relying on each other and their environment for survival.

Answer:

Question 42: A. organism
Question 43: B. environment