The sulfur biogeochemical cycle is a sedimentary cycle with essentially no gaseous cycle
Indicate whether the statement is true or false
FALSE
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The results obtained when the linker was cloned between -50 and -100 indicate that
A. this region is not critical for transcription but can enhance transcription B. the assay failed C. when cloned in this region the linkers had a transacting effect D. the results of the assay were variable and this is just due to random variation in the assay Bloom's Level:
What type of thinking is required?
What will be an ideal response?
Reptiles are better adapted to life on land than are amphibians. Which of the following statements best describes their advantage?
A. Reptiles have an egg with an amnion, yolk sac, allantois, chorion, and shell. B. Reptiles have a skin that resists loss of water by evaporation. C. Reptiles breathe by expanding the rib cage. D. Reptiles have the ability to concentrate urine. E. All the other choices provided are correct.
During fertilization in humans, _______________________
(a) a wave of Ca2+ ions is released in the fertilized egg's cytoplasm. (b) only one sperm binds to the unfertilized egg. (c) a sperm moves in a random fashion until it encounters an egg. (d) several sperm pronuclei compete in the cytoplasm to fuse with the egg nucleus.