Phylogenetic species concept (PSC) The concept of a species as an irreducible group whose members are descended from a common ancestor and who all possess a combination of certain defining, or derived, traits (see apomorphy). ... "phylogenetic species concept." A Dictionary of Biology. .
Or
The biological species concept has its limitations (although it works well for many organisms and has been very influential in the growth ofevolutionary theory). ... In thisexample, Ensatina salamander lineages A and B are separate species.Each has a common ancestor that individuals of other species do not.
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Ocean waters absorb the sun’s energy. Sea ice reflects the sun’s energy.
<span> Analyze what could have happened, and change the experimental methods to retest the hypotheses in a different way.. </span>
Answer:
A.
Explanation:
When freshwater is met with the ocean salt is diluted to the freshwater. Therefore organism that require little salt would be put at a threat.
Answer:
Hypothesis
Explanation:
An hypothesis is a proposed explanation for a set of observation.