On a weather map, which type of front is shown by a line with triangular points on one side?

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

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

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"