Amicroscope reveals one hundread similar cells arranged end to end in a space of 1 millimeter the average length of each cell must be ?

The influenza virus cause the flu, but not other diseases. why?

Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?

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?