According to the text, ________ is the region with largest percentage of internet users.
A. Africa
B. Asia
C. North America
D. Europe
Answer: B. Asia
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The ____ meristems are the source of new cells that allow plants to grow in diameter
Fill in the blank with the appropriate word.
Resource partitioning can often be seen in similar species that occupy the same geographic area. These species avoid competition by living in different portions of the habitat or by utilizing different food or other resources and are called ____________ species.
A. sympatric B. allopatric C. competitive D. fundamental E. exploitative
Hundreds or thousands of individuals of certain __________ form colonies in which each polyp has a
special function such as feeding, reproduction, or defense. A. sea anemones B. hydrozoans C. jellyfish D. ctenophores E. sponges
Some insects can stride on the surface of water because water
a. has a high specific heat. b. has lower density when frozen. c. is a good solvent. d. has surface tension. e. resists temperature changes.