Which of the following would NOT be an example of Genetic Engineering?
A. Gene Therapy
B. Natural Selection
C. Genetically Modified Organisms
D. Cloning

Environmental differences within ecosystems are generally caused by

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

The big bang theory suggest that the universe is about - 300 million years old - 4.6 billion years old - 30 billion years old - 13 billion years old