Which Statement About Gastrulation Is True

question 22

Multiple Choice

Which statement about gastrulation is true?

• A) In frogs, gastrulation begins in the vegetal hemisphere.
• B) In sea urchins, gastrulation produces the notochord.
• C) In birds, cells from the surface of the blastodisc move down through the primitive groove to form the hypoblast.
• D) In mammals, gastrulation occurs in the hypoblast.
• E) In sea urchins, gastrulation produces only two germ layers.

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Definitions:

Generalized Anxiety Disorder

A mental health disorder characterized by excessive, uncontrollable worry about everyday things.

Unconscious

According to Freud, an area of the psyche where memories, wishes, and needs are stored and where conflicts among the id, ego, and superego are played out.

Conscious

Refers to mental contents and processes of which we are actively aware.

Generalized Anxiety Disorder

A mental health condition marked by persistent and excessive worry about various aspects of daily life, not limited to one specific event or situation.