What limits how big a cell can be?
a. Color
b. Wavelength
c. The surface area to volume ratio
d. Resolution
e. Type of electron microscopy.
Answer: c. The surface area to volume ratio
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Humans should be routinely vaccinated against Lyme disease.
Answer the following statement true (T) or false (F)
Why do tropical rainforests exist in soils that are nutrient-poor?
A) There is a low rate of decomposition, and plants cannot absorb the "undigested" nutrients. B) There is a low rate of decomposition, and plants quickly absorb the nutrients as they are available. C) There is a high rate of decomposition, and plants quickly absorb the nutrients as they are available. D) The plants cannot use the types of nutrients produced by tropical decomposers.
Animals vary the composition of their urine depending on their environment and their need to conserve water
Indicate whether the statement is true or false
Nitrogen has 7 electrons and can form a maximum of ________ bonds with other elements.
A. 1 B. 5 C. 2 D. 3 E. 4