A. The mutation did not affect the child. 3. A child is diagnosed with sickle cell disease, a
genetic blood disorder. Which of the following is
true about the mutation that occurred?
B. The mutation produced a beneficial effect.
C. The mutation is due to the environment
D. The mutation produced a harmful effect.

Species can vary in several ways. which of the following is one of darwin's ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time? a. species vary around the world. b. species have specific adaptations to their local environment. c. species that live in seawater can also live on mountains. d. species change over long periods of time.