Which factor has the least effect on the amount
of incoming light that strikes an area?
a. latitude
b. temperature
c. the slope of the land that is exposed to the
incoming light
d. the amount of cloud cover
e. season
B
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All connective tissues share which of the following structural features?I Contain cellsII Contain a matrix filled with extracellular materialIII Contain sarcomere units
A. II only B. I and III C. I and II D. I, II, and II E. II and III
Which one of the following ecosystems is most likely to show an inverted biomass pyramid but a normal energy pyramid?
A. grassland B. open ocean C. intertidal D. tropical forest E. desert
For the numbered steps below, select the option that places them in the correct order.
1) The ribosome binds to the mRNA and uses tRNAs to translate mRNA into the corresponding amino acid polypeptide sequence. 2) The spliceosome removes introns. 3) The primary structure of the polypeptide chain undergoes hierarchical foldings to form the tertiary structure. 4) RNA polymerase binds to the promoter region of a gene and initiates transcription. A) 1 > 2 > 3 > 4 B) 4 > 2 > 1 > 3 C) 3 > 1 > 4 > 2 D) 2 > 1 > 4 > 3
Almost all plants are ____________ because the only nutrients they require are water and minerals from the soil and carbon dioxide from the air.
Fill in the blank(s) with the appropriate word(s).