Question

question 1 (3 points)
ecologists assign every type of organism in an ecosystem to a feeding level, also called
a) net primary productivity.
b) trophic level
c) food web.
d) microevolution.

Explanation:

• Net primary productivity refers to the rate at which producers (like plants) create biomass after subtracting their own respiration costs. It's not about an organism's feeding level.
• Trophic level is the exact term used to describe an organism's position in a food chain based on its feeding behavior. For example, plants (producers) are at the first trophic level, herbivores that eat them are at the second, and so on.
• Food web is a complex network of interconnected food chains in an ecosystem. It shows how different organisms are linked through feeding relationships but is not the term for a single feeding level.
• Microevolution is the change in allele frequencies within a population over generations. It's related to evolutionary biology at a small - scale level and has no connection to an organism's feeding level in an ecosystem.

Answer:

B. trophic level