There Has Been a Change in the Dominant Vegetation Since

question 10

Multiple Choice

There has been a change in the dominant vegetation since plants first invaded the terrestrial environment about 400-500 million years ago. In what order were these vegetation types dominant, from earliest to most current?

• A) Gymnosperms, progymnosperms, angiosperms
• B) Angiosperms, progymnosperms, gymnosperms
• C) Progymnosperms, gymnosperms, angiosperms
• D) Angiosperms, gymnosperms, progymnosperms
• E) Progymnosperms, angiosperms, gymnosperms

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Definitions:

Sickle Cell Disease

A genetic disorder resulting in red blood cells assuming an abnormal, rigid, sickle shape, leading to various complications including pain and anemia.

Red Blood Cells

Bioconcave cells that carry oxygen throughout the body, using the protein hemoglobin, and are essential for delivering oxygen to tissues.

Nature

The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.

Nurture

The process of caring for and encouraging the growth or development of someone or something.