Which group of plants have phloem and xylem, seeds, flowers, and fruit and in many cases require animals for reproduction?
A. liverworts, hornworts, and mosses
B. ferns, club mosses, horsetails, and whisk ferns
C. ginkgo, cycads, conifers, and gnetophytes
D. monocots and eudicots
E. All plants
Answer: D. monocots and eudicots
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Which of the following processes will occur in the presence or absence of oxygen?
A. glycolysis B. electron transport chain C. oxidative phosphorylation D. cellular respiration E. citric acid cycle
Symptoms of infectious mononucleosis include
A. sore throat, fever, cervical lymphadenopathy, and splenomegaly. B. fever, severe diarrhea, pneumonitis, hepatitis, and retinitis. C. fever and pocks on skin. D. vesicular lesions in oral mucosa.
An organism’s habitat __________
a. is unchanging b. includes both living and nonliving components c. provides essential resources d. includes both living and nonliving components and provides essential resources
Soon after the introduction of antibiotics, resistant strains of bacteria that could grow in the presence of particular antibiotics began to evolve. Researchers develop new antibiotics, only to see resistant bacterial strains evolve within a few years. Which of the following explains why resistant strains of bacteria can evolve so quickly?
A. Bacteria have a short generation time. B. Bacteria have a short generation time and can transfer plasmids containing resistance genes via conjugation. C. Bacteria can transfer plasmids containing resistance genes via conjugation. D. Horizontal gene transfer. E. Bacteria have a short generation time and can transfer plasmids containing resistance genes by horizontal gene transfer mechanisms such as conjugation.