To reproduce sexually, bryophytes require
A. heterospory.
B. free water external to the plant.
C. high temperatures.
D. solar energy.
E. insect pollination.
B. free water external to the plant.
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Describe the alteration of five selected biomes by humans. How have different biomes been converted
for commercial or agricultural use? Of those selected, which has undergone the most extensive change? What will be an ideal response?
Which type of mutant would be most likely to produce a bushier phenotype?
A) auxin overproducer B) strigolactone overproducer C) cytokinin underproducer D) strigolactone underproducer
Which of the following is the most difficult to inactivate?
A. enveloped viruses B. fungus spores C. bacterial endospores D. nonenveloped viruses E. protozoan cysts
Which of the following is an exogenous antigen?
A. a bacterium inside a cell B. a virus inside a cell C. a bacterium outside a cell D. a non-infected human cell E. the malaria parasite inside a red blood cell