Answer:
<em><u>The water in lakes comes from rain, snow, melting ice, streams, and groundwater seepage. If water leaves a lake by a river or other outlet, it is said to be open. All freshwater lakes are open. If water only leaves a lake by evaporation, the lake is closed.</u></em>
Answer: it contains the instructions needed for an organism to grow, reproduce, develop, and survive.
Explanation:
All of the structure of the DNA molecule work together to grow, reproduce, develop, and survive.
Answer: "To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells."
1.) B.) plants have chloroplasts
2.) B.) to prevent hydrophilic heads from sticking
3.) B , D and maybe C?