Answer:
B. runoff of nitrates from fertilizers applied to the golf course
Explanation:
Algal bloom is defined as the rapid growth of algae in freshwater or marine water. Algal bloom is green or yellowish in color that cover the top layer of water systems.
Algal bloom in the given case is caused by the excess of nutrients that is nitrates from fertilizers into waters and higher concentrations of nitrates causes uncontrollable growth of algae.
Algal blooms are harmful for environment as they may produce toxins and can block the sunlight from reaching the plants and animals in the water systems.
Hence, the correct answer is "B. runoff of nitrates from fertilizers applied to the golf course".
Answer:
DNA is made up of molecules called nucleotides each nucleotides contains a phosphate group a sugar group and nitrogen base
Can we get a model to expand ?
The first difference is the size, cells are sized in micrometer (visible at optic microscope) and viruses in nanometer (electronic microscope).
Cells have both DNA and RNA, virus have only one genetic material (DNA or RNA).
Cells have always a membrane, not all the viruses have a membrane, but all of them have capsids in different forms.
Viruses cannot live on their own, they have to parasite a cell to proliferate. Cells can live by themselves and proliferate by scissiparity (divisions).
Cells have ribosomes to translate their RNA. viruses don't (they use the infected cells' ribosomes).
