Savannas are .....

Consider the following four statements $(a-d)$ regarding certain desert animals like the kangaroo rat:
$(a)$ They have a dark color and high rate of reproduction and excrete solid urine.
$(b)$ They do not drink water,breathe at a slow rate to conserve water,and their body is covered with thick hair.
$(c)$ They feed on dry seeds and do not require drinking water.
$(d)$ They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements are true?

Many freshwater fishes cannot live in seawater and vice versa because of:

Most animals are tree dwellers in a

The physical space occupied by the organism is called its . . . . . . niche.

In which area does the highest average rainfall occur?