According to the Theory of Common Descent, How Should Each

question 1

Multiple Choice

According to the theory of common descent, how should each species on Earth today compare?

• A) They should look very similar to all other species.
• B) They should not have ancestors in common with members of other species.
• C) They should have a single ancestor in common.
• D) They should have DNA that is mostly unique from other species.

---

Definitions:

Nerve Cells

Specialized cells that transmit electrical impulses throughout the nervous system.

Blood Cells

The cells circulating in the blood, primarily red blood cells (erythrocytes), white blood cells (leukocytes), and platelets, each serving essential functions in the body.

Neuroplasticity

Describes the ability of the brain to change and adapt in response to experience, by forming new neural connections.

Acetylcholine

is a neurotransmitter involved in muscle activation, memory formation, and the transmission of nerve impulses in the nervous system.