Examine the evolutionary tree.The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present;the vertical axis represents nothing in particular.The labeled branch points on the tree (V-Z) represent various common ancestors.Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species,and only the tips of the lineages on this tree represent distinct species.
-Which pair would probably have agreed with the process that is depicted by this tree?
Definitions:
Gastrin
A hormone secreted by the stomach that stimulates secretion of gastric acid.
Stomach
A muscular hollow organ in the gastrointestinal tract of humans and many animals, where digestion of proteins begins.
Liver
The liver is a vital organ that plays a central role in metabolic processes including detoxification, producing plasma proteins, and secreting bile.
Pancreas
A glandular organ in the digestive and endocrine system that produces hormones and enzymes to aid in digestion and blood sugar regulation.
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