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Transcript
Classifying Organisms into Major Groups Guided Notes Classification of Organisms Organisms Plants Animals What are plants? • Plants are __________________________ that are made of many parts and are capable of making their own food • There are more than 400,000 different __________________ of plants that have been identified. • They _____________________ into 2 groups: flowering and nonflowering. Classification of Plants Plants Flowering Nonflowering Flowering • Plants that make ___________ • Nearly all our food comes from these plants • Also known as seed plants Nonflowering • Plants that do not make seeds • Usually _________________ than flowering plants • Have to reproduce in other ways because they don’t have seeds What are flowering plants? • Those plants that make seeds within flowers • Some flowers become the ______________ that contains the seeds. • Examples: grasses, roses, oak trees, fruit trees, tomatoes, bean plants What are nonflowering plants? • Those plants that make seeds within cones or produce spores instead of seeds • Examples: – pines, spruce, or cedar trees that produce cones – ferns, mosses, and lichens that produce spores What are animals? • They are organisms made of many __________ but cannot make their own food. • They must get energy from eating plants or other animals. • They are classified according to whether or not they have a backbone. Classification of Animals Animals Invertebrates Vertebrates Animals without backbones Animals with backbones What are invertebrates? • animals __________________ backbones • some have fluid-filled bodies and do not have hard outer coverings (ex. jellyfish or worms) • others have a hard outer covering or shell (ex. insects, clams, and crabs) • Examples: insects, spiders, shrimp, crayfish, sponges, jellyfish, snails, sea stars What are vertebrates? Vertebrates Animals with a backbone Fish Amphibians Reptiles Birds Mammals • have backbones • share _________________ characteristics: a protective skin covering, an inside skeleton, muscles, blood that circulates through blood vessels, lungs or gills for breathing What are fish? • breathe with gills • most have _______________ and fins • most lay eggs • have a body temperature that changes with its environment What are amphibians? • first breathe with gills in water, and then breathe with lungs on land • have smooth, ________________skin • most lay eggs • have a body temperature that changes with its environment What are reptiles? • breathe with lungs • have scales or __________________ • most lay eggs • have body temperature that changes with its environment What are mammals? • breathe with lungs • have _____________ or hair • can nurse their young with milk • usually give birth to live offspring • have a constant body temperature What are birds? • breathe with lungs • have _________________________, one beak, two wings, and two feet • lay eggs • have a constant body temperature