Which group consists entirely of multicellular eukaryotic consumers?
A) plants
B) protists
C) animals
D) fungi
Answer: C) animals
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Which compounds serve as major sources of energy for ruminant animals?
A) acetic acid and glucose B) acetic, butyric, and propionic acids C) dimethylsulfoniopropionate, gluconate, and protocatechuate D) glucose and sucrose
In the respiration of terrestrial animals,
"ventilation" refers to a. the bulk movement of air in and out of the organism. b. the diffusion of gases across a membrane. c. the diffusion of gases in and out of blood cells. d. the transport of gases to and from body cells. e. all of these.
When bone marrow stem cells are removed from the patient, infected with a virus that carries a normal gene, and returned to the patient, this is an example of
A. ex vivo gene therapy. B. viral disinfection. C. chemotherapy. D. PCR. E. in vivo gene therapy.
Which statement best describes a cell membrane?
a. it is found only found in animal cells b. it is a non living structure c. it controls reproduction in a cell d. it controls the passage of materials into the cell