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'CK-12 Foundation's Life Science for Middle School FlexBook covers the following chapters:

Studying Life- Nature of science: scientific method. tools used in science and safety in research.

Introduction to Living Organisms- what they are, what they are made of, and classification. Introduces carbs, lipids, proteins, and nucleic acids.

Cells and Their Structures- what they are, what they are made of, organelles and eukaryotic vs. prokaryotic.

Cell Functions- active transport, passive transport, photosynthesis, and cellular respiration

Cell Division, Reproduction, and DNA- mitosis, meiosis, DNA, RNA, and protein synthesis

Genetics- Mendel’s peas to gene therapy.

Evolution- Darwin’s natural selection, history of life and evidence of evolution.

Prokaryotes- properties and characteristics

Protists and Fungi- properties, characteristics, reproduction and metabolism

Plants- nonvascular & vascular, gymnosperms & amniosperms and hormones/tropisms

Introduction to Invertebrates- sponges, cnidarians, and worms

Other Invertebrates- mollusks, echinoderms, arthropods, and insects

Fishes, Amphibians, and Reptiles- fishes, amphibians, and reptiles

Birds and Mammals- characteristics, properties, diversity and significance

Behavior of Animals- communication, cooperation, mating and cycles

Skin, Bones, and Muscles- skeletal, muscular and integumentary systems

Food and the Digestive System- nutrition and digestion

Cardiovascular System- heart, blood, vessels and cardiovascular health

Respiratory and Excratory Systems- breathing and elimination of waste

Controlling the Body- Nervous System

Diseases and the Body’s Defenses- Diseases and the immune response

Reproduactive System and Life Stages- Reproduction, fertilization, development and health

From Populations to the Biosphere- Ecology: Communities, ecosystems, biotic vs. abiotic factors, and biomes

Ecosystem Dynamics- Flow of energy, recycling of matter, and ecosystem change

Environmental Problems- Pollution, renewable vs nonrenewable resources, habitat destruction & extinction, and biodiversity

Glossary'

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