Question

what is the total amount of matter of all of the organisms in an ecosystem referred to as?
biomass
population numbers
biodiversity

Explanation:

To solve this, we analyze each option:

• Biomass: Defined as the total amount of matter (or organic material) in organisms within an ecosystem.
• Population numbers: Refers to the count of organisms, not the amount of matter.
• Biodiversity: Relates to the variety of life forms, not the total matter of organisms.

So the correct term for the total amount of matter of all organisms in an ecosystem is biomass.

Answer:

A. biomass