Megan is waiting for the school bus. She sees it driving down the street straight toward her position. If the bus is moving at a constant speed, which graph shows the position of the bus relative to Megan through time?

A. Z

B. X

C. W

D. Y
answer is B. X

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.