The protective layer outside of the plasma membrane of the plant cell is called ______
A. chitin
B. proteoglycans
C. pectin
D. the cell wall
E. cellulose
D. the cell wall
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Which yellow-pigmented organism exhibits gliding motility that grows best at 35°C and in conditions with increased carbon dioxide (CO2) but cannot grow in ambient air?
a. Actinobacillus b. Capnocytophaga c. Cardiobacterium d. Kingella
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?
Areas of the spinal cord appear glistening white because of
a. naked dendrites. b. cell bodies. c. neuroglia cells. d. lack of meninges. e. myelin sheaths.
Which statement describes an atom of oxygen?
A) Most naturally occurring atoms of oxygen contain 9 neutrons. B) All atoms of oxygen include 8 protons. C) Nitrogen-15 is an isotope of oxygen. D) Its atomic weight is the same as its atomic mass. E) Its chemical symbol is Ox.