They are the only mammals capable of self-powered flight, but they’re by no means rare. Bats account for about one in five of all mammals living on the planet and there are around 1,300 bat species worldwide. They are, however, threatened by loss of natural habitat and hunting, and many species of bat are considered endangered or threatened.
Though they’re the only mammals to have developed the ability to fly, they’re extremely good at it. The Mexican free-tailed bat can achieve speeds up to 99 miles per hour in the air and fly as high as 10,000 feet, as high as a bald eagle.
They’re the only flying mammals and are extremely diverse
Answer:Christine was crying because she work so hard for the test but she was not be able to pass it
Explanation:
The correct answer is - Tundra is much cooler than deserts, so less water evaporates during the growing season and the tundra stays more moist.
The tundra is a very cold biome. In fact, most of the year is winter, and there is only a short period of time when it is summer, and that is not really a summer in the true sense of the word, as it is relatively cold and fresh.
Since for most of the year the tundra is frozen, the water is not evaporating, and during the very short ''summer'', it defrosts, so it becomes all very marshy, and that allows the plants to grow there.
Also, because the summer so short and relatively cold, the evaporation of the water is minimal, so most of the water just frozen again in the winter.
