Endospores

question 63

Multiple Choice

Endospores

• A) are bacterial reproductive structures.
• B) are resistant to everything except radiation.
• C) can be produced when nutrients are scarce.
• D) can last for only about 100 years.
• E) are produced by bacteria, algae, and fungi.

---

Definitions:

Hormones

Chemical messengers produced by glands in the endocrine system that regulate various bodily functions and processes.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another target neuron, muscle cell, or gland cell.

Hypothalamus

A region of the brain that regulates various bodily functions including hunger, thirst, sleep, and hormonal secretions.

Testosterone

A steroid hormone primarily produced in the male testes and female ovaries, associated with the development of secondary sexual characteristics and influencing behavior.