Exocytosis moves materials out of a cell.
Endocytosis moves materials into a cell.
Active transport uses carrier proteins. (not entirely sure about this one... check it out to be sure)
Molecules move from an area of high concentration to an area of low concentration by passive transport.
Answer:
D. Because science only uses facts that are proven 100% true through the use of variables.
Explanation:
All the knowledge we read is science books are not merely some observed facts but the result of a systematic scientific methodology through which facts are tested. Science only gives us that knowledge as facts which is proven 100% true through the use of variables.For example: if a scientist has studied the effect of salt stress on the growth of plants and he got the results in form of graphs which show that growth of salt treated plants in very less than normal plants. Then he needs to draw conclusion after consulting relevant previous experiments and say that salt stress hinders growth and why? with reasonable logic.
Variables are the things hat he changes like environmental conditions in previous example to see that in changed conditions plant is showing changed behavior. This way a scientist strengthens his results. Therefore, we can say that whatever knowledge we get through science is proven 100% true through the use of variables.
Hope it helps!
the genetic material housed inside the cell nucleus is packaged in into these organized bundles.
- chromosomes
The way plates move, geologists identified three types of boundaries. • A. (dih-<span>VUR-juhnt) occurs ... at divergent bound- aries in the ocean and on </span>land<span>. .... Like the sea floor, </span>continents<span> also spread </span>apart at a divergent boundary<span>. The boundary ...</span>
Yes, the planet obeys the Kepler's Second Law. It is because it moves at equal time of one month at the same distance.
