It makes photosynthesis<span> more efficient.</span>
In an ecosystem, all the trophic level in a food web are closely interlinked and any change in one level is bound to affect the other levels. The various trophic levels may correspond to producers (such as grass and plants), primary consumers (such as deer), secondary consumers (such as tigers or lions, etc.), etc. If we reduce the land available or necessary for sustaining the ecosystem by half (5 acres instead of 10 acres).
Compare: Estimate, measure, or note the similarity or dissimilarity between.
Contrast: Compare in such a way as to emphasize differences.
Therefore, to contrast is to compare. They mean the same thing. So, just write the differences and similarities between the two texts and you should be fine. It doesn't matter what subject or topic it is, just stick to the guidelines,and you should be good. have a nice day =D
Answer:
400Joules
Explanation:
the total work done to be calculated is Force× Distance
:f×d=W
80×5=320J
A cell membrane is c.selectively permeable because it regulates what materials enter the cell.