Question

Which term includes all of the interactions between the organisms and physical

factors in a pond? *
a. Population
b. Ecosystem
c. Abiotic
d. Competition

Answer 1

Its b. Ecosystem

Population is the number of a species in an area, it has nothing to do with physical characteristics.

Abiotic is just an adjective meaning not alive

Competition is just the interactions between organisms in the struggle for food, water, space, mates, and many other things again not physical characteristics