Select the sentence from the section "An Ultracool Dwarf" that BEST explains what TRAPPIST-1 is. Group of answer choices

Current observations suggest its orbital period could range anywhere from four to 73 days.

The star is just .05 percent as bright as our sun.

The system’s host star, called TRAPPIST-1, is what is known as an ultracool dwarf.

It is about one-tenth the size of our sun and just a bit bigger than Jupiter.

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.

During a load test, a battery's voltage drops below a specified value. what action should the technician take?

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal