Question

multiple-choice question what are chemical messengers that move slowly through the blood? ○ glands ○ hormones ○ neurotransmitters

Explanation:

• Glands are organs that secrete substances, not the messengers themselves.
• Neurotransmitters are chemical messengers that transmit signals across synapses (between neurons), not through the blood slowly.
• Hormones are chemical messengers produced by endocrine glands, released into the bloodstream, and travel relatively slowly through the blood to target cells.

Answer:

B. hormones