Approximately what percentage of the species that have ever existed on Earth are represented by the estimated 10 million species that exist today?

A) 80%
B) 10%
C) 1%
D) 0.0001%


C

Biology & Microbiology

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What is the key concept addressed by the question?

What will be an ideal response?

Biology & Microbiology

The function of a repressor protein is to ________

a. begin translation b. begin transcription c. prevent translation d. prevent transcription

Biology & Microbiology

Cells that are not dividing remain in the

A.) Mitosis Phase B.) Synthesis Phase C.) First Gap Phase D.) Second Gap Phase

Biology & Microbiology

A polar molecule moves across a membrane from a region of high concentration to a region of low concentration by a process called

A. simple diffusion. B. facilitated diffusion. C. active transport. D. phagocytosis.

Biology & Microbiology