Which of the Following Is a Good Indicator of a Person's

question 595

Multiple Choice

Which of the following is a good indicator of a person's circadian rhythm with most people reaching a low point two to three hours before their normal waking time?

• A)serotonin level
• B)noradrenaline level
• C)digestive function
• D)core body temperature

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Definitions:

Nematocysts

Specialized cells in the tentacles of cnidarians (such as jellyfish) that eject a stinging thread to capture prey or provide defense against predators.

Cnidocytes

Stinging cells characteristic of cnidarians.

Cnidocils

Specialized cells found on cnidarians, like jellyfish, that contain a stinging structure used for capturing prey.

Nemerteans

A phylum of invertebrate animals also known as ribbon worms, which are known for their elongated bodies and proboscis used for feeding and defense.