Which is not an example of an earth system cycle?
a. seasons
b. tsunamis
c. foo...
Biology, 05.01.2020 20:31 edgarsandoval60
Which is not an example of an earth system cycle?
a. seasons
b. tsunamis
c. food web
d. day and night
Answers: 3
Biology, 22.06.2019 13:00
What is gene expression control that occurs after the generation of rna
Answers: 3
Biology, 22.06.2019 21:40
According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this? a. this implies that dna and proteins aren't essential in cells today. b. this implies that rna can catalyze any chemical reaction that enzymes catalyze. c. this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna. d. this implies that dna and proteins evolved after rna.
Answers: 2
Biology, 23.06.2019 08:30
Oxytocin and cholecystokinin are transported through the bloodstream and arrive at the uterus at the same time. oxytocin causes the uterus to contract, whereas cholecystokinin has no effect. why? oxytocin blocks the activity of cholecystokinin. oxytocin is at a higher concentration in the bloodstream than cholecystokinin. oxytocin can diffuse through the plasma membrane of uterine cells, whereas cholecystokinin cannot. oxytocin alters gene expression patterns, whereas cholecystokinin does not. the uterus has receptors for oxytocin, but not for cholecystokinin.
Answers: 3
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