Because nucleosomes play a key role in packaging DNA into chromosomes, they bind to the DNA molecule very tightly, and once they are assembled, they cannot be moved.
a. true
b. false
Ans: b. false
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You are examining an ecosystem and notice a large bird. When you measure its temperature, you find it to be constant in sun or shade, wind or still air. This indicates the bird is a(n)
A. homotherm. B. ectotherm. C. endotherm. D. positherm. E. thermophile.
In which stage of labor is the afterbirth (placenta, fluid, and blood) delivered?
a. the first stage b. the second stage c. the third stage d. in either the first or second stage e. in either the second or third stage
According to Woods, the key to understanding hunger is to appreciate that eating meals stresses the body, how?
What will be an ideal response?
Lizards and snakes are living representatives of which lineage?
a. lepidosaurs b. anapsids c. archosaurs d. synapsids