The term for the use of microorganisms to restore damaged environments is
A. epidemiology.
B. bioremediation.
C. chemotherapy.
D. serology.
E. ecology.
Answer: B
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Types of genetic markers include
A) places in the genome where a base varies among individuals in a population. B) places in the genome where all people have identical base sequences. C) the types of mRNAs in a cell. D) the proteins produced in a cell.
Prior to 500 million years ago, organisms were
unable to venture onto land because a. the earth’s crust was too hot. b. the land was too dry. c. there was not enough oxygen in the atmosphere for respiration. d. the land was not shielded from the sun’s ultraviolet radiation. e. there was no organic matter on land for food
What would be the ultimate effect on an ecosystem if decomposers were eliminated?
a. The rate of photosynthesis would increase. b. The consumers would have to eat twice as much. c. Energy flow between producers and consumers would increase. d. All life would eventually cease as nutrients would no longer be available. e. Producers would outgrow consumers due to the excess of carbon dioxide.
Which of these is a correct order of taxonomic categories from most inclusive to least inclusive?
A) domain, kingdom, phylum, class, order, family, genus B) domain, phylum, kingdom, order, class, family, genus C) domain, kingdom, class, phylum, order, family, genus D) kingdom, domain, phylum, order, class, family, genus