Biology, 14.05.2021 21:20 jforeman42
5. A local gardener puts fertilizer on his plants. The plants are
very healthy, but what is a negative effect the fertilizers have
on the environment?
A. Excess fertilizer is washed into local streams,
causing an overgrowth of algae.
B. The fertilizer builds up in the soil and causes
more weeds to grow over time.
C. The fertilizer evaporates, causing acid rain to
fall on the neighborhood.
D. The fertilizer pollutes the groundwater
causing an overabundance of producers.
Answers: 1
Biology, 21.06.2019 16:10
Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:
Answers: 1
Biology, 22.06.2019 02:50
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 11:00
1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis
Answers: 1
5. A local gardener puts fertilizer on his plants. The plants are
very healthy, but what is a negat...
Mathematics, 19.11.2020 20:10
Biology, 19.11.2020 20:10
Social Studies, 19.11.2020 20:10
Social Studies, 19.11.2020 20:10
Mathematics, 19.11.2020 20:10
Chemistry, 19.11.2020 20:10
Mathematics, 19.11.2020 20:10
Mathematics, 19.11.2020 20:10
Geography, 19.11.2020 20:10
Computers and Technology, 19.11.2020 20:10
Chemistry, 19.11.2020 20:10