Which description applies to broadleaf deciduous trees of temperate forests?
A) They drop their leaves as they freeze solid.
B) They reabsorb chlorophyll, resulting in the colorful autumn pigments becoming visible.
C) They grow slower than narrow-leaved trees during summer months.
D) They are the only type of plant life found in this biome.
B
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Two species of closely related squirrels both feed on acorns produced by oak trees. One species feeds exclusively near
the top of the tree and the other feeds exclusively towards the bottom of the tree. This is an example of ____.
a. competitive exclusionb. resource partitioning c. mutualism d. commensalism e. mimicry
The distribution of living organisms would be
increased by a. continental drift. b. the formation of Pangea. c. the sea-floor spreading. d. the movement of Gondwana. e. all but “the formation of Pangea.”
George liked to go for very long runs; we can assume that this chemical becomes depleted during those marathons: ________
Fill in the blank(s) with correct word
Which of the following statements about reverse transcription is false?
A) Reverse transcription uses special enzymes called reverse transcriptase. B) Reverse transcription is performed by certain viruses and human cells. C) Reverse transcription requires a particular initiation sequence. D) Reverse transcription builds copy DNA (cDNA). E) Reverse transcription uses RNA as a template.