Answer:
Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species. Assessment of the vestigiality must generally rely on comparison with homologous features in related species
Explanation:
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The pair of purplish-darker organs is situated beneath the ribs toward the center of the back. Their capacity is to expel fluid waste from the blood as pee; keep a steady adjust of salts and different substances in the blood; and deliver erythropoietin, a hormone that guides the arrangement of red platelets.
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
Metal is only cold because of our bodies temperature, that’s what makes it seem cold when we hold it. But metal is normally warm
