Extinction Brainpop Questions and Verified Answers | Passed | A+

1. Which of the following is a true statement about the members of a species? : B. They must be able to breed with one another 2. According to most scientists, what is the ultimate cause of most mass extinctions? : C. Major changes in the environment 3. What can you conclude from the fact that more than a billion species have gone extinct during Earth's history? : A. Extinction is a natural part of life on Earth 4. The bald eagle almost went extinct when humans began using a pesticide called DDT. What can you conclude from the fact that bald eagle numbers have since rebounded? : D. The pesticide was banned 2 5. What is a scientific theory? Choose the best answer. : B. An explanation that's backed up by evidence 6. How has the expanding human population led to an increasing rate of extinction? Choose the best answer. : B. Humans re-shape their environment, putting pressure on other species 7. How can the extinction of a plant species have such a drastic effect on a food chain? Choose the best answer. : D. If the extinct species was the main food source for another animal, that animal will have to find a new way to survive 8. Which of the following words best describes the process of evolution? : A. Responsive