Question

Jackrabbits are adapted to the conditions of dry grasslands. How does the ears of a jackrabbit help it to survive the hot and cold weather?

pls answer correctly and fast.
I will mark brainliest​

Answer 1

Answer:

The jackrabbit’s large ears provide an expansive surface area of exposed skin loaded with blood vessels.

Explanation:

Jackrabbits live in the desert, where they’re exposed to extremely hot daytime temperatures. But, these animals are able to stay cool by releasing excess heat from their oversized ears.  

When the surrounding air temperature is slightly below the rabbit’s body temperature, as when it retreats from hot desert sun into shade, the blood vessels in the outer part of its ears widen in a process called vasodilation. This results in greater circulation of warm blood from the body’s core to the jackrabbit’s ears, where heat is lost to the cooler surrounding air.