During the early part of a young human's life, when milk is a main source of nutrition, the E. coli in the young offspring's intestinal tract are exposed to high levels of which of the following?
a. glucose
b. ribose
c. cellulose
d. lactose
e. fructose
d
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During the process of successional change, ____
a. the total mass of living things remains constant b. pioneer species help build and improve the soil c. the pioneer community gives way quickly to the climax community, followed by a succession of more diverse arrays of organisms d. nutrients cycle more rapidly with time e. indicator species disappear
The type of biome characteristic of an area depends mainly on rainfall and temperature. Which biome gets the most rainfall?
1.forests 2.grassland 3.shrubland 4.tundra
Evolution does not violate the second law of thermodynamics because
A. evolution is a random process; it does not require an input of energy. B. the disorder generated by extinction balances the order created by evolution. C. Earth is not a closed system; it constantly receives an input of energy from the sun. D. living organisms are not subject to the second law.
Where are the food materials digested by fungi located?
A) externally B) within their mitochondria C) within food vacuoles D) within their cells