A hypothesis is an educated guess while using reasonable thinking, about the answer to a scientific question. Although it is not proof in an experiment, it is the predicted outcome of the experimentation. It can either be supported or not supported at all, but it depends on the data gathered.
Answer:

Explanation:
We need to find the energy produced when Sun converts 1.7 kg of mass into energy. Einstein's mass energy relation is given by :

c is speed of light

So, energy produced is
.
The<span>
answer is A. Limited resources will
result in stiff competition among
individuals in the population. This will
result in differential
survival across the population because only
the individuals that are able to outcompete
the others will be able to reproduce and pass their genes to the next
generation. This, therefore, will change the allelic
frequency of the <span>population.</span></span>
B) They maintain balance in the cell.
That mix of hydrophobic and hydrophilic, in other words, the mix of repelling and attraction maintains the aqueous balance in a cell and it's exterior.
Hope it helped,
BioTeacher101