Which defines a biological community?
question 13 options:

all organisms living within a type of biome

all the interacting populations in an area

many interacting ecosystems in an area

the living and nonliving things in a region

"All the interacting populations in an area" defines a biological community.

Option B

Explanation:

Throughout biology, 'species' denotes each organisms of same kinds which are theoretically capable of breeding and developing fertile offspring under a natural conditions. A population is created by the representatives of an species living at a given region and also at the same time.

A biological (or biotic) culture or community is composed of all organisms living and communicating within a particular geographic region. The living organism in a community builds an ecosystem with its non-living or abiotic environment.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.