CK-12 Biology Workbook

About This Book

This book was made by CK-12 Foundation, a nonprofit group that works to make school books cost less for students everywhere in the U.S. and around the world. CK-12 uses a special online way of building books, called a FlexBook, so that teachers and students can use and change the content to fit their needs.

What's Inside This Book

This workbook covers many big ideas in biology, the study of life. Here are the main topics you will learn about:

• What biology is and how science studies the natural world
• The chemistry of life, including matter and water
• How cells are built and how they work
• Photosynthesis (how plants make food from sunlight) and cellular respiration (how cells get energy)
• How cells divide through mitosis and meiosis
• Gregor Mendel's discoveries about genetics (how traits pass from parents to offspring)
• DNA, RNA, and how cells build proteins
• Human genetics and biotechnology (using living things to make useful products)
• How life began and how living things are classified into groups
• Darwin's theory of evolution and the evidence that supports it
• Ecology, including how matter recycles and different biomes (large natural areas with their own climate and living things)
• Communities of living things, populations, and human population growth
• Tiny organisms like bacteria and viruses
• Protists and fungi, including molds and mushrooms
• How plants evolved and how they are classified
• Plant biology, including roots, stems, and leaves
• An introduction to animals, both invertebrates (animals without backbones) and vertebrates (animals with backbones)
• Fish, amphibians, reptiles, and birds
• Mammals and animal behavior
• The human body, including bones, muscles, and skin
• The nervous system and endocrine system (which controls hormones)
• The circulatory, respiratory, digestive, and excretory systems
• The immune system and how the body fights disease
• Human reproduction and development

This workbook is meant to help students practice and understand these important biology topics step by step.