Twenty-five percent of all prescription drugs sold in the United States are based on substances derived from fewer than 50 species of plants

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Not all animals are able to hear. The sense of hearing exists in organisms of the phyla

_____ arthropods. _____ mollusks. _____ vertebrates. _____ cnidarians.

Biology & Microbiology

Individuals with adaptive traits tend to survive longer and produce more offspring, leading to ___ of the species

a. extinction b. descent c. artificial selection d. evolution e. a decrease in fitness

Biology & Microbiology

The partial pressure of atmospheric oxygen gas at sea

level is about a. 0.3 mm Hg. b. 160 mm Hg. c. 300 mm Hg. d. 592 mm Hg. e. 745 mm Hg.

Biology & Microbiology

Transgenic mice carrying a mutant human SOD1 gene are used as models to study _____________________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology