An ecosystem such as a forest in the Pacific
Northwest of the United States is made up of
a. plants, animals and fungi.
b. organisms and nonliving things.
c. rocks and minerals.
d. plants, protozoa, and fungi.
e. all of these.
B
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When a person is having a heart attack, the pain originating in the heart muscle is often felt in the left shoulder and arm. This is called
A. Muscle pain B. Referred pain C. Deep pain D. Acute pain
The lining of the digestive tube is formed from:a
endoderm. b. ectoderm. c. germ cells. d. mesoderm. e. pseudoderm.
Which term refers to a fruit that develops from several ovaries in multiple flowers?
a. simple fruit b. multiple fruit c. aggregate fruit d. accessory fruit
For phylogenetic studies, which characteristic is NOT a reason why SSU rRNA gene sequences are favored over other nucleotide sequences?
a. They are completely conserved. b. They are functionally constant. c. They make up the largest database of gene sequences. d. They are universally distributed.