Biology, 11.03.2020 02:46 jonathanmalone
Which of these BEST explains how the cell membrane helps animal cells grow and divide? A. It transports enzymes. B. It stores genetic information. C. It supplies the cell with energy. D. It controls materials that enter and exit the cell.
Answers: 1
Biology, 21.06.2019 12:50, elijahcraft3
Which of the following is true about the solar wind? select all that apply the solar wind blows dust around on the moon. the solar wind interacts with earth's magnetosphere. the solar wind only interacts with the earth and its moon. the solar wind may be the source of water on the moon.
Answers: 1
Biology, 22.06.2019 02:50, mccay5016987
Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?
Answers: 1
Biology, 22.06.2019 07:40, pulliamdylan
Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one
Answers: 1
Which of these BEST explains how the cell membrane helps animal cells grow and divide? A. It transpo...
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