A hotter object emits longer wavelengths than a cooler object
Indicate whether the statement is true or false
FALSE
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Fibroblast cells are a good model system for studying muscle differentiation because
A. they are totipotent. B. they never differentiate into muscle cells in a normally developing animal. C. they can differentiate into muscle cells in a normally developing animal. D. they express a limited number of genes. E. they have a small genome.
If life exists on Mars, it is predicted that organisms would live underground and be anaerobic. Why?
What will be an ideal response?
Earthworms possess both male and female organs on separate segments. Mating could be described as "parallel parking" in opposite directions, and cross-fertilizing. Given this information, which of the following is (are) true?
A. Maintaining any system not clearly male or female is disadvantageous; the earthworm is trapped in an evolutionary dead end. B. This is primarily to allow them to self-fertilize if no other worm is in their sector of the soil. C. This is evidence of a primitive state that is generally less efficient than separate sexes. D. This is an advantage since they can mate with any other earthworm of the same species that they encounter.
Discuss the cellular factors that might make a drug's spectrum of action narrow rather than broad
What will be an ideal response?