Which of the Following Animals Possess a Hydrostatic Skeleton

question 17

Multiple Choice

Which of the following animals possess a hydrostatic skeleton?

• A)flatworm
• B)earthworm
• C)butterfly
• D)sea star

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Definitions:

Unused Muscle Groups

Muscles that are not regularly engaged in activity or exercise, leading to potential weakening over time.

Exercise Pace

The speed or intensity level at which physical activity is performed, often adjusted based on health goals and current fitness levels.

Muscle or Joints

Body parts involved in movement and stability; muscles are fibrous tissues that cause motion, while joints are the connections between bones allowing for mobility and flexibility.

Activity Tolerance

The type and amount of exercise or work that a person is able to perform without undue exertion or aggravation of symptoms.