During the 1990s Knowlton and colleagues studied pairs of sister species of the genus Alpheus (snapping shrimp). In each of these sister species pairs, members of one pair lived on the Caribbean side of the Isthmus of Panama, while members of the other pair lived on the Pacific side. What type of speciation might be responsible for this speciation? Group of answer choices

allopatric speciation with the vicariance model

Explanation:

Allopatric breaks down into "allos" which means other or different and "patric" which means land or something similar.

Here the speciation is allopatric speciation because the sister species are in two different environments or lands. It represents the vicariance model because there is a physically divide between the organisms such as one is in the Isthmus of Panama, while members of the other pair live on the Pacific side.

i think its c. amphipod

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: