Which of the following is a density-dependent limiting factor? A) fire
B) disease
C) hurricanes
D) wetland destruction

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Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp