Primitive Feathers in Certain Dinosaurs Evolved in Anticipation of Flight

question 23

True/False

Primitive feathers in certain dinosaurs evolved in anticipation of flight in their descendants, the birds.

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Definitions:

Bipolar Disorders

A psychological condition defined by severe changes in mood, from elevated states such as mania or hypomania to depressive episodes.

Genetic Component

Refers to the contribution of genes or heredity to the development of traits, behaviors, or diseases.

Genetic Vulnerability

A predisposition to develop certain medical conditions or diseases based on an individual's genetic makeup.

Depressive Disorder

This condition involves a constant feeling of sadness or a disinterest in usual activities, markedly affecting a person's daily routine.