What days will the sun be directly overhead at Brazil and Chile?

Which osmotic and ionic strategies must marine teleost fishes employ?

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?