Covering only 6 percent of the land surface, tropical rain forests account for more than 50 percent of all known plant and animal species

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Which statement concerning radioisotope 14C is

false? a. It can be substituted for 12C in glucose and the body will still be able to use the compound. b. It has a different number of protons than 12C. c. It has more neutrons than 12C. d. It behaves the same chemically as 12C. e. It has six carbons and eight neutrons.

Biology & Microbiology

rDNA is the portion of a genome that is involved in the production of ribosomal RNA

Indicate whether the statement is true or false

Biology & Microbiology

How does chemotherapy work as a treatment for cancer? Why is it not always effective?

What will be an ideal response?

Biology & Microbiology

Bactericidal drugs tend to target bacterial

A) cell walls, cell membranes, and nucleic acids. B) protein synthesis and nucleic acids. C) nucleic acids. D) cell walls and cell membranes. E) cell walls and enzyme activation.

Biology & Microbiology