Which of the following best describes the likely results of the scientists’ investigation of the fitness of the sticklebacks that were originally from a marine environment?

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation