Answer:
Explanation:
More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify and evolve.
Horses live to be twenty years old.
(false, horses live 25-32 statistically.)
They are
Clever
Generous
Sly
Answer:it is an opinion
Explanation:
Some people see the world like that but other barley ever uses the word carelessly
Answer:
previous chapter to what? I'm pretty sure what youre supposed to do is just name a vocab word from the last chapter you read from whatever book youre supposed to read
Explanation:
