Earthworms and Slugs Move by

question 87

Multiple Choice

Earthworms and slugs move by

• A) stretching their longitudinal muscles and contracting their circular muscles.
• B) contracting their cilia.
• C) alternating contractions of longitudinal and circular muscles.
• D) contracting extensor and flexor muscles attached to their endoskeleton.

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Definitions:

Fructose

A simple sugar found in honey and fruit that serves as a major carbohydrate source in the human diet.

Phosphate Group

A functional group consisting of a phosphorus atom covalently bonded to four oxygen atoms, commonly involved in energy transfer within cells.

Weakly Acidic

Describes a solution that has a pH slightly less than 7, indicating a low concentration of hydrogen ions.

Essential Amino Acid

An amino acid that must be provided in the diet because the body cannot make it or cannot make it in sufficient quantities to meet nutritional needs.