Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 1 - 1.1 - Concept Check - Page 11: 1


Organelles are the functional elements within cells. Cells are the smallest structural and operational unit of life. Cells are all able to perform the necessary functions of life. Transcript of cells forms tissues. Tissues consist of groups of cells working together to perform a singular function. Multiple tissues make up an organ, a body part that carries out a specific function. An organ system is made up of several organs that work together to perform similar functions. An organism is made up of multiple organ systems, each performing different bodily processes that work together and in sync to run the body. A species is a group of living organisms consisting of similar individual organisms of the same species that live together within a specified area constitute a population. A community is a group of organisms, from different species, that live together in a shared environment. A group of living organisms, as well as the non-living things with which they interact, that are found in any particular area make up an ecosystem. The biosphere is the area around the Earth, including the surface of the Earth and the atmosphere around it, where life exists.

Work Step by Step

Consider the basic parts of each level of organization.
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