AP Environmental Science

Answer: C - Charles Darwin wrote about his theory of evolution in the book The Origin of Species.

Key Takeaway: Charles Darwin wrote The Origin of the Species during the 1850s. This book laid out Darwin’s theory of evolution that explained how many species evolved from one and how it took place. Darwin argued, among other things, that similar organisms reproduce similar organisms (a cat reproduces a cat; a human reproduces a human), the number of offspring is overproduced, organisms must compete with each other and with other species for resources, individuals have varying traits that can be passed down, and natural selection will ultimately accumulate favorable traits, leading to evolution.