snoRNPs are found in the nucleolus. Two functions of these complexes include:
A. rRNA processing.
B. tRNA processing.
C. adding methyl groups to rRNA.
D. adding methyl groups to tRNA.
E. transcription of 5S rRNA.
A, C
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The component of a plant cell that stores energy is the __________
a. central vacuole b. chloroplasts c. chromoplasts d. leucoplasts
During the third phase "3", the population
growth slows and then levels off because
a. essential resources become scarce. b. the carrying capacity has been reached. c. competition for food becomes increasingly important. d. predators eat fawns as they are born. e. all of these occur except "predators eat fawns as they are born."
Oxygen and carbon dioxide are exchanged with blood directly across the alveoli wall
Indicate whether the statement is true or false
Much of the world's coal reserves were formed from the buried remains of the dominant plants of the Carboniferous period. What were the dominant plants of the period?
a. gymnosperms and angiosperms b. angiosperms only c. gymnosperms only d. seedless vascular plants