Question

this diagram is a model of a horses muscular system. which statements are true about muscles? strong animals have muscles, and weak animals do not. muscles are made up of muscle cells. muscles can be covered by skin or by an exoskeleton.

Explanation:

• All animals, whether strong or weak, have muscles as they are essential for movement and other bodily functions. So the statement "Strong animals have muscles, and weak animals do not" is false.
• Muscles are indeed made up of muscle cells (also known as muscle fibers). This is a fundamental biological fact.
• In some animals (like humans - covered by skin) and in arthropods (covered by exoskeleton), muscles can be covered by skin or an exoskeleton.

Answer:

• "Muscles are made up of muscle cells." is true.
• "Muscles can be covered by skin or by an exoskeleton." is true.
• "Strong animals have muscles, and weak animals do not." is false.