wunder beta

🧬 The Factors of Organic Evolution

Read Herbert Spencer's challenge to selection-only explanations, then separate the origin of heritable variation from the processes that spread it.

lessons

~15 min

to learn

🔬 Science

subject

Adults

level

Start the course →

What you’ll learn

Spencer's problemDistinguish evolution, natural selection, and the stronger selection-only claim in Spencer's argument.Spencer accepts evolution and natural selection, then tests whether selection alone can explain coordinated organic change.
The proposed factorsExplain Spencer's proposed roles for function, environment, heredity, and selection while separating his hypothesis from modern genetics.The second half presents direct adjustment and selection as interacting routes, then leaves the learner with a modern question about heritable variation.

Questions this course answers

What is Spencer's central claim?

Spencer asks whether natural selection of favorable variations is the sole factor and argues for cooperating causes.

What does Spencer mean by inherited functionally produced modification?

The claim belongs to Spencer's nineteenth-century theory; it should not be confused with the modern genetics of inheritance.

What is indirect equilibration in the course's account?

Spencer uses indirect adjustment for population-level effects of differing relations to the environment.

What question should a modern reader ask about an adaptation?

Separating the origin of variation from its spread preserves Spencer's useful analytical distinction without preserving his outdated heredity mechanism.

Grounded in trusted sources

[object Object]
[object Object]
[object Object]
[object Object]

Every Wunder lesson is built from real, reputable sources — never invented.

Related Science courses

🌿How Natural Selection Works 📖The Principles of Biology, Volume 1 🌺The Flower Garden 🪐The Story of the Solar System 🕳️Black Holes, Explained 🌍The Blue Zones 🧬On the Origin of Species — Charles Darwin (Deep Dive)🌉Bridges & Skyscrapers

Wunder is a personalized learn-anything platform — tell it any topic and it builds a beautiful, fact-checked course in minutes, with narration, a knowledge check, and a college-style University track.

Browse more Science courses · All topics · Home