The picture shows a model of a cell. What is the main function of the cell part labeled Y in the model? A: To hold and protect the cells DNA B. To store enzymes that break down food C. To use energy from sunlight to make sugars D. to provide cells with energy for their acivities

mountains can affect the climate of nearby lands. in some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. much of airborne moisture falls as rain on the windward side of mountains.

explanation:

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.