Ch. 1 Introduction - Concepts of Biology Flashcards

Vocabulary flashcards covering the introductory concepts and timeline of life on Earth as presented in Chapter 1 of Concepts of Biology.

First forms of life

Microorganisms that are thought to have existed for billions of years on Earth before plants and animals appeared.

Mammals, birds, and flowers

Relatively recent life forms on Earth that originated between $130$ to $200$ million years ago.

Human inhabitation

The period of time, spanning the last $2.5$ million years, that humans have lived on the planet.

Modern human appearance

The point in history, approximately $300,000$ years ago, when humans began to look as they do today.

Figure 1.1

A NASA composite image of Earth created by combining satellite-based observations of different parts of the planet.

Biology Chapter 1 Outline

An overview of the chapter which includes 1.1 Themes and Concepts of Biology and 1.2 The Process of Science.