Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

1: Biodiversity

2: Species

3: Ecosystem

Explanation:

Biodiversity refers to species richness, genetic diversity of populations within a species and variety of ecosystems present on the earth. Hence, biodiversity is the variety present at all the levels of biological organization.  

A group of individuals that can interbreed to produce fertile progeny is referred to as species.

Sum total of all living beings present in a region, climatic and edaphic factors makes an ecosystem. Living beings make the biotic component of the ecosystem while climatic and edaphic factors are abiotic components.  

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

the answer is b.) hydrogen bonds between bases.