The tension exerted on a cell due to water movement across the cell membrane is referred to as:
A) osmosis.
B) tonicity.
C) diffusion.
D) active transport.
Ans: B) tonicity.
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Lyell's theory of uniformity is the idea that ________
a. None of these answers b. rapid, sudden changes have changed the Earth c. gradual, repetitive changes have shaped the Earth d. lines of descent improve each generation as a result of internal drive by the organism e. catastrophic geological events have shaped the Earth
Hormone therapy, if administered early, is effective in treating genetic goitrous cretinism. Indicate whether the statement is true or false
Prokaryotes and eukaryotes show differences in posttranscriptional modifications of mRNA. What are these differences, and why do eukaryotes show more modifications than prokaryotes?
What will be an ideal response?
The impacts of the microbial types that inhabit cross-sections of water sediment are vast. Consider that sediments deep beneath water surfaces are home to perhaps ________ of the world's bacterial and archaeal biomass.
A. 50% B. 95% C. 20% D. 10%