________ Introduced the Theory of Evolution by Natural Selection in 1859

question 6

Multiple Choice

________ introduced the theory of evolution by natural selection in 1859.

• A) Sigmund Freud
• B) Charles Darwin
• C) Stephen Hawking
• D) Wilhelm Wundt

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Definitions:

Accutane

A brand name for isotretinoin, a powerful drug used in the treatment of severe acne.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, often used illicitly for its euphoric effects.

Blastula Stage

An early stage in the embryonic development of animals characterized by a spherical layer of cells (the blastoderm) surrounding a fluid-filled cavity (the blastocoel).

Ciliary Action

The movement of cilia, tiny hair-like structures, that help to move fluid or materials across the surface of certain cells.