The genetic code for the conversion of mRNA codons to proteins has redundancy.
a. true
b. false
Answer: a. true
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A Tampa Bay study demonstrated species diversity and abundance of polychaetes within a square meter was in excess of:
a. 10,000 individuals among 50 species. b. 13,000 individuals among 37 species. c. 50,000 individuals among 50 species. d. 100,000 individuals among 37 species. e. 100,000 individuals among 50 species.
A pair of cells that surrounds each stoma and controls its opening and closing are the
A. companion cells. B. guard cells. C. sieve tube cells. D. pith cells. E. vascular cells.
Hypothetically, how could scientists lower Earth's temperature in order to combat global warming?
A) by moving ice from the Arctic to the tropical oceans B) by forcibly melting more glaciers and polar ice caps C) by reflecting more light from land masses D) by decreasing the reflectance of cities
The hypodermis is composed of ____.
A. adipose and nervous tissues B. connective and adipose tissues C. blood and lymphatic vessels D. hair follicles and sweat glands E. sebaceous and sweat glands