When Did Life First Appear on the Planet

question 1

Multiple Choice

When did life first appear on the planet?

• A)3.5 billion years ago
• B)2.1 billion years ago
• C)3.5 million years ago
• D)2.1 million years ago

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Definitions:

Verbs

Words that describe actions, states, or occurrences and form the main part of the predicate of a sentence.

Prototype Theory

A theory in cognitive science that suggests concepts or category judgments are made by comparing new stimuli to the "best example" or prototype of that category.

Family Resemblance

The physical or behavioral similarities observed among members of the same family, attributing to shared genetics and environment.

Semantic Features

The components of meaning that come together to define a particular word within linguistic semantics.