Scientists know exactly where point source pollution begins and can address the problem easier. Nonpoint source pollution is a greater hazard, because scientists are not able to identify a single location the pollution came from. It is harder to find a solution if they are unable to find the source.
Answer:
The correct answer is option C, Scientists argue, re-examine, and consider new explanations to new data.
Explanation:
Science is a subject which is learned through continuous assessment.
All the established scientific theories are considered as the best explanation to any concept or fact. These established theories were also tested several times and were supported by peers during the time of their discovery. But yet the scientific theories changes as theories need to be progressive. Which means they must be embedded with scope of re framing itself in future if some better explanation for the same theory is found.
Science is however, a continuous process of learning.
· In an open system matter and energy can be transferred
· In a closed system only energy can be exchanged
· In an isolated system neither matter nor energy can be exchanged
· The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system
· As an open system the cell allows nutrients to enter the cell and waste products to exit the cell
· The cell does this through the use of a semi-permeable membrane
· It needs nutrients in the forms of glucose, ions and many other molecules.
· The nutrients can come into the cell through either passive or active transport
· In passive transport the nutrients naturally move from a higher concentration gradient to a concentration gradient.
· During active transport the particle need to move against the concentration gradient. To do this the cell needs energy to transport the materials. The energy comes in the form of ATP.
Answer:
The right approach will be "Natural selection".
Explanation:
- Natural selection seems to be a mechanism that persists and reproduces populations of organisms that seem to be better suited to applications, however those that are somewhat properly equipped die away.
- This demonstrates that organisms that really can respond to a given climate can rise in quantities and therefore will ultimately outperform certain species that are unable to respond significantly.
Ion exchange
method affect the solubility and function of protein, and proteins can be separated
on the basis of the charge they get. If pH is greater than
pI of a given protein, that protein gets
negative charge and become an anion, and when the pH
is less than the pI of that same protein, it gets positive
charge and become a cation.