Which of the following is abiotic?
A) a protist
B) a plant
C) a fungus
D) a rock
D
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The monomers of DNA, called ________, are composed of ________
a. amino acids / carbon, hydrogen, oxygen, and nitrogen b. monosaccharides / carbon, hydrogen, and oxygen c. nucleosides / base and sugar d. nucleotides / base, sugar, and phosphate
What structures in the circulatory system of the vertebrate body have valves? Consider this carefully. Do they function in the same general fashion?
What will be an ideal response?
The principal difference between a saprophytic and
parasitic mode of nutrition is a. the quality of the nutrients. b. the species of fungus that possess it. c. determined by the quantity of available nutrients. d. determined by the source of the nutrients. e. whether the digestion is intracellular or extracellular.
Which of the following brings amino acids to the ribosomes?
A) ribosomal RNA B) transfer RNA C) messenger RNA D) introns E) exons