Answer:
Since it is likely that the weeds in the lake act as a food source for organisms within that ecosystem, killing all the weeds would harm the population that feeds off them, and in turn the populations that feed off of them.
None is the correct answer
So the independent variable is the thing that is changed in an experiment and you want to change the amount of rainfall the cactus gets as the hypothesis is about rainfall so the answer would be c). Hope this helps :)
<span>The primary desired therapeutic effect of mannitol is the reduction of intracranial pressure. This pressure, most likely caused by swelling on the brain, is generally caused by head traumas and can be life threatening. The administration of mannitol reduces this swelling thus decreasing the cranial pressure.</span>
DNA
Nucleic Acids are the basis for the storage and transmission of hereditary information in all cells. Determines a cell's function and manufactures proteins & enzymes. Encodes instructions for making proteins and RNA. DNA stores the “operating instructions” for a cell.
