Extinction Brainpop Questions With 100% Correct Answers!!

1. Which of the following is a true statement about the members of a species? - Answer-B. They must be able to breed with one another 2. According to most scientists, what is the ultimate cause of most mass extinctions? - Answer-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? - Answer-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? - Answer-D. The pesticide was banned 5. What is a scientific theory? Choose the best answer. - 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. - 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. - 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? - Answer-A. Responsive 9. What can humans do to make sure that fish species don't go extinct? Choose the best answer. - Answer-B. Stop the practice of overfishing 10. Why do many scientists believe that the growing level of extinctions is a problem? - Answer-A. Extinctions affect entire ecosystems