Studying the amount of carbon stored in the forest floor per hectare in a boreal forest in Canada after a fire would be an example of studying ecology at which level?

A) community B) ecosystem C) population D) biosphere


Answer: B

Biology & Microbiology

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An autosome is

a. a chromosome that is part of a pair that is the same in both males and females. b. a structure for transport of genetic material to the cytoplasm. c. a chromosome with a group of genes involved in autoimmune disorders. d. a region of the DNA that is self-replicating. e. a cellular body involved in autoimmune disorders.

Biology & Microbiology

Which of the following performs a chemical digestion similar to that done by pepsin?

a. aminopeptidase b. carboxypeptidase c. trypsin d. gastrin e. lecithin

Biology & Microbiology

Four of the five answers listed below provide evidence that genes are located on chromosomes. Select

the exception. a. the chromosome number is cut in half by meiosis b. original chromosome number is restored by fertilization c. some genes tend to be inherited together d. environmental factors may influence gene expression e. there are two sets of chromosomes, one maternal and one paternal in diploid forms

Biology & Microbiology

What is the main reason that lung cancer develops?

A. There is exposure to allergens. B. The person's immune system is nonfunctional. C. Mitotic growth factors replicate. D. Two tumor suppressor genes undergo mutations.

Biology & Microbiology