A study of the genomes of dogs from around the world indicated that:a
the dogs’ closest relative is the gray wolf.
b. all dogs appeared to develop from a mixture of wolf and coyote.
c. some dogs evolved from the coyote and some from the wolf.
d. all dogs appeared to evolve from a mixture of the jackal and the wolf.
e. all dogs appeared to evolve from a mixture of the wolf, jackal, and the coyote
a
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Preventing the incorporation of microbes into food can by achieved by
A. washing fruits and vegetables. B. aseptic techniques for handling meat, eggs, and milk. C. avoiding cross-contamination of utensils and cutting boards. D. handwashing and proper hygiene in the kitchen. E. All of the choices are correct.
A plant with a weak compartmentalization response is susceptible to ________
a. being outcompeted by invasive species b. invasion of wounds by decomposers c. drought d. all of the choices
Plant tissue noted for storage, secretion, and
regeneration is
a. vascular cambium. b. parenchyma. c. collenchyma. d. sclerenchyma. e. none of these
In order to survive and reproduce, a cell needs
a. an energy source. b. raw materials. c. a suitable environment. d. DNA. e. all of these