Transfer of DNA between bacterial cells by viruses is called (transformation/transduction/conjugation)
What will be an ideal response?
transduction
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Four of the five processes listed below cause stomata
to open. Select the exception. a. activity of abscisic acid b. potassium ions building up in guard cells c. water moving from epidermal cells to guard cells d. turgor pressure increasing in guard cells e. guard cells carrying on photosynthesis
Humans, as well as all other mammals, have hair. Hair, then, would be considered to be a(n):
a. derived character. b. cladistic character.
c. ancestral character. d. analogous character. e. polyphyletic character.
Which of the following is the result of gastrulation?
A) A three-layered embryo B) A blastula C) A hollow ball of cells D) The formation of organs E) A zygote
Which one of the following is true about scientific knowledge?
A) Scientific knowledge is derived from careful thinking about the way things must work based on application of a few fundamental principles. B) Scientific knowledge is not absolute, because the possibility is always held open that new experiments may one day prove it wrong. C) Scientific knowledge is acquired though teachings passed on by great scientists. D) When based on many experiments, scientific knowledge is absolutely true. E) Scientific knowledge is derived from the strongest arguments made by the brightest scientists.