Biology, 11.10.2019 18:30, cordovamaria22
Watersheds may be contaminated by fertilizers and other pollutants. when these substances enter a waterway, they can cause algal blooms, which are rapid overgrowths of algae.
when the algae die, the decay uses up a large portion of dissolved oxygen.
declining oxygen levels can then cause large die-offs of animals in the waterway.
what will an algal bloom in a watershed
most likely cause?
a. an increase in the watershed’s genetic diversity, which would reduce it’s ability to supply clean and safe drinking water.
b. a decrease in the watershed’s biodiversity, which would reduce it’s ability to supply clean and safe drinking water.
c. an increase in the watershed’s species diversity, which would improve it’s ability to supply large volumes of water.
d. a decrease in the watershed’s ecosystem diversity, which would improve it’s ability to supply large volumes of water.
and d is the wrong answer
Answers: 2
Biology, 21.06.2019 15:20, felipa11
Which would be the outcome in a fertilized egg if the process of meiosis did not occur? twice as many chromosomes as the parents half as many chromosomes as the parents same number of chromosomes as the parents triple the number of chromosomes as the parents?
Answers: 2
Biology, 22.06.2019 01:30, jfrjtwrg
In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.
Answers: 2
Biology, 22.06.2019 02:30, ElegantEmerald
How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
Answers: 3
Watersheds may be contaminated by fertilizers and other pollutants. when these substances enter a wa...
Mathematics, 22.10.2020 16:01