The ____ Is the Smallest Living Functional Unit in an Organism

question 51

Multiple Choice

The ____ is the smallest living functional unit in an organism.

• A)cell
• B)organelle
• C)atom
• D)mitochondrion

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Definitions:

Neural Communications

The process by which neurons transmit signals through synapses to communicate with other neurons, muscles, or glands.

Anterior Pituitary

The front portion of the pituitary gland, which releases hormones controlling a variety of physiological processes including growth, reproduction, and metabolism.

Posterior Pituitary

The posterior pituitary is the rear part of the pituitary gland and releases important hormones like oxytocin and vasopressin directly into the bloodstream.

Pineal Gland

A tiny gland in the brain responsible for making melatonin, a hormone that controls sleeping cycles.