The major divisions of the peripheral nervous system are the ____.
A. somatic and autonomic systems
B. sympathetic and parasympathetic systems
C. peripheral and central systems
D. afferent and autonomic systems
E. cranial and skeletal nerves
Answer: A
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DNAase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen to DNA molecules treated with DNAase?
A) The two strands of the double helix would separate. B) The phosphodiester bonds between deoxyribose sugars would be broken. C) The purines would be separated from the deoxyribose sugars. D) The pyrimidines would be separated from the deoxyribose sugars. E) All bases would be separated from the deoxyribose sugars.
In ________, the ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.
A. archaea B. fungi C. eukaryotes D. prokaryotes
Traditional evolutionary systematics used Linnaean systems of classification
Indicate whether the statement is true or false.
Gross primary productivity refers to the total ____
a. quantity of solar energy available to the ecosystem in a given period of time b. quantity of solar energy reaching a given area of the ecosystem c. energy captured initially by the producers d. energy used by the heterotrophs of the ecosystem in a given period of time e. energy used by the producers for their growth and reproduction