Assume That Some Members of an Aquatic Species of Motile

question 15

Multiple Choice

Assume that some members of an aquatic species of motile, photosynthetic protists evolve to become parasitic to fish. They gain the ability to live in the fish gut, absorbing nutrients as the fish digests food. Over time, which of the following phenotypic changes would you expect to observe in this population of protists?

• A) loss of motility
• B) loss of chloroplasts
• C) gain of a rigid cell wall
• D) gain of meiosis
• E) No changes would be expected.

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Definitions:

Obsessive-Compulsive Disorder

A mental disorder characterized by unwanted, repetitive thoughts (obsessions) and/or behaviors (compulsions) that the individual feels the urge to repeat over and over.

Difficulty Concentrating

A common cognitive issue where an individual finds it hard to maintain focus on tasks or activities.

Worrying

The act of feeling anxious or concerned about actual or potential problems, often leading to overthinking or stress.

Conversion Disorders

A mental condition where psychological stress is expressed through physical symptoms without an underlying medical cause.