An Organ Is Composed of

question 45

Multiple Choice

An organ is composed of

• A) three cell types.
• B) at least two specialized tissues.
• C) at least 10 specialized cell types.
• D) one or more tissue types.
• E) groups of cells randomly arranged around a scaffold.

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Definitions:

Cretaceous

The geological period between 145 and 66 million years ago, noted for the dominance of dinosaurs and the appearance of flowering plants.

Extinction Event

A significant loss of biodiversity occurring rapidly due to factors like climatic changes, habitat destruction, or the impact of humankind.

Triassic

The first period of the Mesozoic Era, occurring approximately 252 to 201 million years ago, marked by the recovery of life forms from the Permian extinction.