If an Eight-Cell Sea Urchin Embryo Is Bisected Horizontally,relative to Its

question 20

Multiple Choice

If an eight-cell sea urchin embryo is bisected horizontally,relative to its animal-vegetal axis,

• A) both halves will develop into normal,but small,sea urchins.
• B) the top half will not develop,while the bottom half will produce a small sea urchin.
• C) the top half will not develop,while the bottom half will produce an abnormal half sea urchin.
• D) the bottom half will not develop,while the top half will produce an abnormal sea urchin.
• E) the bottom half will not develop,while the top half will produce a small,but normal,sea urchin.

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Definitions:

Bipolar Disorder

A mental health condition characterized by extreme mood swings, including emotional highs (mania or hypomania) and lows (depression).

Psychological Disorder

A mental disorder characterized by patterns of thought, emotion, or behavior that are distressing, harmful, or deviant from societal norms.

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