What is the unit formed by the interactions of populations of various species in a given area called?

The rule which states that mammals from colder climates generally have shorter ears and limbs to minimize heat loss is known as:

In which area does the highest average rainfall occur?

Most animals are tree dwellers in a

Consider the following four statements $(1-4)$ and select the correct pair of adaptations shown by desert lizards to manage their body temperature in their environment.
$(1)$ Burrowing into the soil to escape high temperatures.
$(2)$ Losing energy rapidly from the body during high temperatures.
$(3)$ Basking in the sun when the temperature is low.
$(4)$ Covering the body with a thick,fatty skin.

The aquatic organism that can actively swim at will against the water current is