You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells
A) are plant cells.
B) are animal cells.
C) are bacterial cells.
D) could be either plant or bacterial cells.
Answer: A
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The most common etiologic agent in uncomplicated community-acquired urinary tract infection is:
a. Escherichia coli. b. Klebsiella spp. c. Staphylococcus saprophyticus. d. Streptococcus pyogenes.
In pea plants, yellow seed color is dominant to green, and wrinkled seed texture is dominant to smooth. In a dihybrid
cross between two heterozygous plants with yellow, round seeds, if the two alleles assort independently, what is/are the predicted phenotypic ratio(s) of the offspring?
a. all are yellow and round b. 8 yellow and round: 8 green and wrinkled c. 9 green and wrinkled: 4 yellow and round: 3 green and round d. 9 green and round: 3 yellow and round: 3 yellow and wrinkled: 1 green and wrinkled e. 9 yellow and round: 3 green and round: 3 yellow and wrinkled: 1 green and wrinkled
If a doctor tells a patient that he has broken an axial bone, to which of these bones would the doctor be referring?
A) Clavicle B) Radius C) Vertebra D) Fibula E) Ilium
Nucleic acids are assembled in the ________ direction
Fill in the blank(s) with the appropriate word(s).