Prokaryotes
What will be an ideal response?
are single-celled organisms that lack organelles surrounded
by a membrane and do not have nuclei surrounded by nuclear membranes
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Which of the following events is least likely to result in a genetic change in a bacterium?
A. pilus formation B. conjugation C. specialized transduction D. generalized transduction E. natural transformation Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about horizontal gene transfer? How does it relate to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Refer to the accompanying photograph. Which statement best explains why the owl has its head almost upside down?
a. Photoreceptors are concentrated near the bottom of the eye. b. Photoreceptors are concentrated near the top of the eye. c. Loud music from a passing car has caused damage to the sense of balance. d. An obstruction in its ear has caused this instinctual behavior. e. The presence of prey above has caused this physical alert.
All of the following are terrestrial biomes EXCEPT
A. lentic systems. B. tundra. C. deserts. D. savannas. E. coniferous forests.
The diploid number of chromosomes on a human skin cell is 46. What is the number of chromosomes found in a human egg cell?
A) 92 B) 12.5 C) 23 D) 46 E) 184