Which of the following statements about archaea is FALSE?
A) They are prokaryotes.
B) They lack peptidoglycan in their cell walls.
C) Some are thermoacidophiles; others are extreme halophiles.
D) They evolved before bacteria.
E) Some produce methane from carbon dioxide and hydrogen.
D
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The addition rule requires which of the following?
A. More than one outcome (such as two different genotypes resulting in black fur) can occur simultaneously in an organism B. Two outcomes such as having the genotype BB or Bb. are mutually exclusive in an organism.
Which type of tissue performs photosynthesis in leaves?
a. cork b. epidermis c. parenchyma d. phloem
In animal cells, ____ is/are usually a one-way path
a. replication b. translation c. transcription d. differentiation e. replication and translation
Which of the following best describes the major problem(s) amphibians face?
A) Developmental abnormalities from UV light exposure and ozone depletion B) A major decrease in populations due to a variety of factors, including toxins, UV exposure, fungal infections, and habitat destruction C) Habitat destruction, global warming, and X-ray exposure D) Exposure to environmental toxins, global warming, and ozone depletion E) Fungal infection, bacterial infection, and prion infection