Which of the Following Is a Positive Ion

question 122

Multiple Choice

Which of the following is a positive ion?

• A)Na⁺
• B)Ca²⁺
• C)Mg²⁺
• D)Al³⁺
• E)all of the above

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Definitions:

Hormones

Biochemical substances produced in small amounts by specialized cells in organisms, transported in tissue fluids to stimulate specific cells or tissues into action.

Hemocoel

The primary body cavity of most invertebrates, particularly those with an open circulatory system, containing circulating fluid (hemolymph) that directly bathes the organs.

Closed Circulatory System

A cardiovascular system where blood is enclosed within blood vessels and circulated throughout the body without direct contact with body tissues.

Amphibian Heart

A three-chambered heart found in amphibians, featuring two atria and one ventricle for circulation.