Copyright Pearson Prentice Hall 1-3 Studying Life Photo Credit: © Andrew Syred/Science Photo Library/Photo Researchers, Inc. Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology A Few Branches of Biology Zoologists Botanists Paleontologists Cell Biologists Geneticists Microbiologists Ecologists Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology How can life be studied at different levels? Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology Some of the levels at which life can be studied include: __________________ Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology ________________ The part of Earth that contains all ecosystems Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology ________________ Community and its nonliving surroundings Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Hawk, snake, bison, prairie dog, grass, stream, rocks, air Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology _________________ Populations that live together in a defined area Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Hawk, snake, bison, prairie dog, grass Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology _______________________ Group of organisms of one type that live in the same area Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Bison herd Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology ________________ Individual living thing Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Bison Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology Groups of Cells: found only in multicellular organisms Tissues, organs, and organ systems Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Nervous tissue Brain Nervous system Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology Cells Smallest functional unit of life Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Nerve cell Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall Branches of Biology Molecules Groups of atoms; smallest unit of most chemical compounds Living things may be studied on many different levels. The largest and most complex level is the biosphere. The smallest level is the molecules that make up living things. Water DNA Copyright Pearson Prentice Hall

Biology in Everyday Life More than any other area of study, biology touches your life every day. How? Copyright Pearson Prentice Hall