Things like doorbells and baby monitors understandably often need to be modified to produce a visual or tactile signal that is perceptible to Deaf people. There are also concerns about how to alert Deaf people in the case of an emergency like a fire or tornado as these are usually signaled via a fire alarm or tornado siren. Do some brief internet research on emergency notification methods for those in the Deaf or Hard of Hearing community and describe two methods that are currently available.

Apopulation of deer mice was introduced into a desert ecosystem. being dark-colored, the deer mice stood out in the sand and were easy prey for predators. over a few years, the color of the mice changed from dark brown to light brown. what role does natural selection play in this example? a. the change of color camouflaged them, which them hunt better. b. the change of color enabled them to regulate their body temperature. c. the change of color allowed them to hide better from predators. d. the change of color made their bodies tolerant to the harsh desert sand. e. the change of color allowed them to deflect the excessive heat.