1. When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferences. 20 Isopods are

placed in a 2-choice choice chamber. A cotton ball dampened with distilled

water is placed in Chamber A; A dry cotton ball is placed in Chamber B.

After 15 minutes 2 Isopods are located in Chamber B, and 18 isopods are found

in Chamber A. Perform the chi-squared test to determine if the distribution

of isopods is significant or due to random chance. (3 points)

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.