Question 1 2 out of 2 points Why are all the people on Earth members of the same biological species? Selected Answer: Correct All people can mate with one another and have children. Correct Answer: Correct All people can mate with one another and have children. Response Feedback: Consider how reproduction and fertile offspring are requirements of the definition of a biological species.
Question 2 2 out of 2 points What is speciation? Selected Answer: Correct the process by which new species are formed Correct Answer: Correct the process by which new species are formed Response Feedback: This has occurred when two populations of the same species can no longer interbreed. Question 3 0 out of 2 points Which stage is the first stage of speciation? Selected Answer: Incorrect The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring. Correct Answer: Correct The populations become totally separated from one another. Response Feedback: Two populations of the same species will develop different traits when exposed to different environments and unable to be with each other.
Question 4 0 out of 2 points Which stage is the last stage of speciation? Selected Answer: Incorrect The populations become totally separated from one another. Correct Answer: Correct The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring. Response Feedback: Consider how the environments of two separated groups may differ.
Question 5 2 out of 2 points Which stage is the middle stage of speciation? Selected Answer: Correct The populations are isolated and thus do not interbreed. Correct Answer: Correct The populations are isolated and thus do not interbreed. Response Feedback: Consider that if two populations of a same species are separated, they cannot mate.