A cell will burst in a(n) _____ environment, shrink in a(n) _____ environment, and remain unchanged in a(n) _____ environment. Fill in the blanks
a. hypertonic; isotonic; hypotonic
b. hypotonic; hypertonic; isotonic
c. isotonic; hypotonic; hypertonic
d. hypertonic; hypotonic; isotonic
b. hypotonic; hypertonic; isotonic
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Unlike other cyanobacteria, Prochlorococcus lacks phycobilins
Indicate whether the statement is true or false.
The process of crossing over occurs during which phase of meiosis?
A. Diakinesis B. Diplotene C. Pachytene D. Zygotene E. Leptotene
Dibenzoylhydrazines are a category of molecules that have been used as insecticides. They work by blocking ecdysteroid receptors. How does this kill an insect?
A. The insect can no longer excrete nitrogenous wastes. B. The insect cannot molt. C. The insect can no longer coordinate its movements. D. The chitinous exoskeleton is dissolved. 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 ecdysis? 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?
One generalization of the cell theory is that
a. all cells have a nucleus. b. all cells have cell walls. c. the cell is the smallest unit that displays the properties of life. d. cells can arise from nonliving matter. e. all cells are microscopic.