Which of the following would be most effective in reducing the amount of CO2 in the atmosphere?

A) cyanobacteria
B) anaerobic microbes
C) heterotrophic organisms
D) fungi
E) nitrogen fixers


A

Biology & Microbiology

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A bulbourethral gland secretes

A) sperm. B) a mucus-like fluid. C) blood. D) saliva.

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During moderate but prolonged exercise, most

of the energy for contraction is supplied by a. creatine phosphate. b. aerobic respiration. c. anaerobic respiration. d. fermentation. e. glycolysis

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In a certain population, the frequency of a dominant allele is represented by p = 0.7, and the frequency of the recessive allele is represented by 0.3. What is the frequency of the heterozygous genotype?

A. 1 B. 0.42 C. 0.5 D. 0.01

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True or false: Freshwater flatworms and earthworms are similar in that their excretory systems reabsorb electrolytes and eliminate concentrated urine

A. true B. false

Biology & Microbiology