Evolution: Why Your Eye Is Wired Backward
From Darwin and Wallace to human origins, a survey of how evolution really works and the ideas that most often surprise.
Evolution · 50 questions
Try 3 questions
1. How did Lamarck explain the giraffe's long neck?
- A sudden large mutation in one giraffe
- Random variation plus differential survival
- Stretching was passed on to offspring
Show the answer
Answer: Stretching was passed on to offspring
Lamarck proposed that traits acquired through use during life were inherited, an idea later replaced by natural selection.
2. Who arrived at the theory of natural selection independently of Darwin?
- Thomas Henry Huxley
- Alfred Russel Wallace
- Jean-Baptiste Lamarck
Show the answer
Answer: Alfred Russel Wallace
Working in the Malay Archipelago, Wallace sent Darwin an essay with the same idea, and their papers were presented together in 1858.
3. What key idea did Darwin take from Thomas Malthus's essay on population?
- Populations outgrow their food supply
- The Earth is extremely old
- Species appear by sudden leaps
Show the answer
Answer: Populations outgrow their food supply
Malthus argued that populations grow faster than resources, so Darwin saw a constant struggle in which favorable variations win.
The whole quiz comes before your apps
BrainTok asks a few questions like these before the apps you choose open, so your screen time turns into learning. For iPhone.
Join the beta