Osmosis is a type of diffusion.
a. true
b. false
Ans: a. true
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What is the function of a land plant’s waxy cuticle?
a. Preventing water loss from aerial surfaces b. Secreting toxic compounds to deter animals c. Enabling the root system to extend deeper d. Providing rigidity to stems and leaves
If adults of reproductive age are having just enough children to replace themselves, then the population is said to have ________ fertility
Fill in the blank(s) with correct word
The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that:
a. Radioactive phage were found in the pellet b. Radioactive cells were found in the supernatant c. Radioactive sulfur was found inside the cell d. Radioactive phosphorus was found inside the cell
The transfer of heat from arteries that carry warm blood past veins that carry cooler blood is an example of
A) insulation. B) countercurrent heat exchange. C) evaporative cooling. D) behavioral thermoregulation.