Levels of Biological Organization PDF

Summary

This document explains the levels of biological organization, from atoms to biomes. It covers the hierarchical arrangement of living things and illustrates the concepts using diagrams and examples.

Full Transcript

Levels of Biological Organization Learning Objective Differentiate the different levels of biological organizations. Levels of Biological Organization refers to the hierarchy of abiotic and biotic parts arranged from the simplest to the most complex forms of life. ATO M ...

Levels of Biological Organization Learning Objective Differentiate the different levels of biological organizations. Levels of Biological Organization refers to the hierarchy of abiotic and biotic parts arranged from the simplest to the most complex forms of life. ATO M Atoms are the smallest and the most fundamental unit of matter. MOLECUL E ATO M A molecule is a combination of atoms either by ionic or covalent bonding. ORGANELL E MOLECUL E ATO M Organelles are structures that exist inside the cells. CEL L ORGANELL E MOLECUL E ATO M The cell is the basic unit of life. TISSU E CEL L ORGANELL E MOLECUL E ATO M A tissue is a group of cells that performs the same function. ORGA N TISSU E CEL L ORGANELL E MOLECUL E ATO M Organs are group of tissues performing a specific functions. BODY SYSTEM ORGA N TISSU E CEL L ORGANELL E MOLECUL E ATO M Organ systems consist of two or more organs working together to perform a common ORGANIS M BODY SYSTEM ORGA N TISSU E CEL L ORGANELL E MOLECUL E ATO M Organisms are composed of different body systems. Organisms are recognizable and self-contained individuals. ORGANIS POPULATIO M BODY N SYSTEM ORGA N TISSU E CEL L ORGANELL E MOLECUL E ATO M Organisms of the same species in a certain area make up a population. ORGANIS POPULATIO M BODY N SYSTEM ORGA N COMMUNIT TISSU Y E CEL L ORGANELL E MOLECUL E ATO M Community refers to the combination of different populations in a particular area. ORGANIS POPULATIO M BODY N SYSTEM ORGA N COMMUNIT TISSU Y E CEL ECOSYSTE L M ORGANELL E MOLECUL E ATO M A cluster of communities with the abiotic parts in that area makes up an ecosystem. ORGANIS POPULATIO M BODY N SYSTEM ORGA N COMMUNIT TISSU Y E CEL ECOSYSTE L M ORGANELL E MOLECUL BIOM E E ATO M A biome is composed of plants , animals , and other abiotic factors that have common characteristics due to the environment they exist in. For easy identification of the biomes, you can relate them to your favorite movies. ORGANIS POPULATIO M BODY N SYSTEM ORGA N COMMUNIT TISSU Y BIOSPHER E E CEL ECOSYSTE L M ORGANELL E MOLECUL BIOM E E ATO M The biosphere comprises all the ecosystems. It is the zone of life on earth. ORGANIS POPULATIO M BODY N SYSTEM ORGA N COMMUNIT TISSU Y BIOSPHER E E CEL ECOSYSTE L M ORGANELL E MOLECUL BIOM E E ATO M FORMATIVE ACTIVITY What is the most complex level of organization? a. Tissue b. Organ c. Organ system d. organism Organs that work together to perform a related function are called ___? a. Cells b. Organ c. Organ system d. Tissue The human body is composed of organ systems. Which list represents a system from the least to most complex? a. Heart --> cardiac muscle --> muscle tissue --> muscle cell b. Lung tissue --> trachea --> nostrils --> circulatory system c. Muscle cell --> muscle tissue --> biceps muscle --> muscular system d. Integumentary system --> skin cell --> hair --> sweat glands Which of the following best describes a tissue? a. group of cells working together to perform a specific function b. the smallest functioning unit of a living organism c. a group of organs that work together to perform a specific function d. a specialized unit within a cell that has a specific function What is a multicellular organism? a. An organism with one cell b. A bacteria c. An organism with two or more cells d. An organism that is not made of cells Mitzi has learned that the brain, spinal cord, and peripheral nerves work together. What do they combine to form? a. Cells b. Organ c. Organ system d. Tissue An organism such as a worm may only have 100 cells. It should be classified as being ____. a. virus b. bateria c. unicellular organism d. multicellular organism Which of the following examples is correctly matched with its level of organization? a. A monarch butterfly is an organ system. b. A liver is a type of cell. c. The brain is a type of tissue d. The skin is an organ. Cells are..... a. a group of tissues that together carry out a specific function b. groups of organs that together carry out a specific function c. structural and functional units of all living things. d. are only found in animals. Which of the following displays the levels of organization INCORRECTLY from smallest to largest? a. Atom, Molecule, Organelle, Cell b. Organelle, Cell, Tissue, Organ c. Community, Ecosystem, Biome, Biosphere d. Organ System, Organ, Organism, Population

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