The pond behind serge's house, with all the living and non-living parts, is an example of a(n)
a) biome.
b) ecosystem.
c) habitat.
d) population.

Which step is not included in the step approach to calculating the greatest common divisor?

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f о

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars