Do all ecological pyramids have a broad base with a smaller top?

A. Yes
B. No


Answer: B

Biology & Microbiology

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Transcription factors are proteins that influence the ability of the RNA polymerase to transcribe a gene

Indicate whether the statement is true or false

Biology & Microbiology

Assume that the mutation rate for a given gene is 5 × 10?6 mutations per generation. For that gene, how many mutations would be expected if 10 million sperm are examined?

A) none B) 5 × 10?6 C) 5 D) 50 E) 500

Biology & Microbiology

Saturation can be defined as

A) denaturation of an enzyme. B) the inability to increase reaction velocity beyond a finite upper limit. C) inhibition of enzyme function by blocking the active site. D) the substrate concentration at which velocity reaches one-half maximum velocity. E) a characteristic of all uncatalyzed reactions.

Biology & Microbiology

The place where freshwater streams and rivers meet the sea and mix with saltwater is called a(n) ________

Fill in the blank(s) with correct word

Biology & Microbiology