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Ernst Haeckel Trivia Questions

How much do you really know about Ernst Haeckel? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

Haeckel proposed that 'ontogeny recapitulates phylogeny'—a now-debunked biological law.

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Easy
✓ TRUE

This 'biogenetic law' claimed embryonic development repeats evolutionary history. It was influential but largely rejected by the 20th century.

2.

Haeckel was a strong critic of Charles Darwin's theory of natural selection.

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Medium
✗ FALSE

Haeckel was actually Darwin's enthusiastic champion in Germany, popularizing evolution, though he disagreed on some mechanisms.

3.

Ernst Haeckel coined the term 'ecology' from the Greek word for household.

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Medium
✓ TRUE

Haeckel invented the term 'oekologie' in 1866, defining it as the study of organisms' relationships with their environment.

4.

Haeckel was a devout Christian who saw evolution as God's design.

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Medium
✗ FALSE

Haeckel was a staunch atheist and materialist who opposed organized religion, even founding the Monist League to promote scientific naturalism.

5.

Haeckel forged his famous embryo drawings to support evolutionary theory.

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Hard
✗ FALSE

This is a myth. While his drawings were stylized and inaccurate, modern historians debate whether it was intentional fraud or artistic license.

6.

Haeckel's work directly inspired the Nazi eugenics movement and racial ideology.

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Hard
✗ FALSE

Though his writings on social Darwinism and racial hierarchy were misused by later ideologues, direct inspiration is exaggerated; Haeckel died in 1919, before the Nazi rise.

7.

Haeckel discovered and named thousands of new species of marine radiolarians.

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Hard
✓ TRUE

From the Challenger expedition samples, Haeckel described over 3,500 radiolarian species, many with stunning silica skeletons that he illustrated himself.

8.

Haeckel's book 'Art Forms in Nature' influenced early 20th-century architecture and design.

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Hard
✓ TRUE

Its intricate, symmetrical illustrations inspired Art Nouveau artists, architects like Antoni Gaudí, and even René Binet's designs for the 1900 Paris Exposition.

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