If the surface area of a cell that is shaped like a cube increases 100 times, its volume increases about
A) 5 times.
B) 10 times.
C) 100 times.
D) 1000 times.
Answer: D) 1000 times.
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Which reaction represents cellular respiration?
A. Sugar + Oxygen ? Carbon dioxide+ Water + ATP B. Water + ATP ? Carbon dioxide + Sugar C. Carbon dioxide + Water + ATP ? Sugar + Oxygen D. Oxygen + Carbon dioxide ? Sugar + Water + ATP
If nitrifying bacteria were not present in a soil, plants would ____
a. take up nitrogen for their use mainly as NH4+ b. not survive because they could not get useful nitrogen c. take up nitrogen for their use mainly as N2 d. take up nitrogen for their use mainly as NH3 e. take up nitrogen for their use mainly as NO3-
Horsetail and ferns are _____ plants
a. multicelled aquatic c. seedless vascular b. nonvascular seed d. seed-bearing vascular
Modified stems that branch from the main stem of the plant and grow horizontally on the ground or just under it are
referred to as ____.
a. rhizomes b. bulbs c. stolons d. corms e. tubers