A Scientist Is Studying Some Developing Eggs from an Ocean

question 31

Multiple Choice

A scientist is studying some developing eggs from an ocean sample.The early embryos have divided only a few times,and all cells look identical.When the scientist carefully removes half the cells from an embryo,both clumps of cells are able to complete development,forming twins.The eggs can be identified as

• A)deuterostomes.
• B)protostomes.
• C)crustaceans.
• D)cnidarians.
• E)echinoderms.

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Definitions:

Depression

A mood disorder characterized by unrelenting feelings of sadness or a lack of enthusiasm for tasks, causing notable disruption in daily routines.

Individual Therapy

A form of psychotherapy where the therapy is conducted on a one-on-one basis between a therapist and patient.

Monoamine Oxidase (MAO) Inhibitors

Antidepressant drugs that lower MAO activity and thus increase the level of norepinephrine activity in the brain.

Tyramine

A naturally occurring monoamine compound that has been associated with the "cheese effect," potentially causing dangerous hikes in blood pressure when consumed in large amounts by individuals taking certain types of antidepressants.