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Unit 5 Introduction

Classification Characteristic Vocabulary

prokaryote A unicellular organism that lacks a nucleus and membrane bound organelles
eukaryote A cell that contains a nucleus and membrane bound organelles
vertebrate an animal with a backbone
invertebrate an animal that does not have a backbone
sexual reproduction 2 parents; genetically different offspring
asexual reproduction 1 parent; genetically identical offspring
bilateral symmetry Body plan in which only a single, imaginary line can divide the body into two equal halves.
radial symmetry body plan in which body parts repeat around the center of the body
asymmetry lack of symmetry
heterotroph An organism that cannot make its own food.
autotroph An organism that makes its own food
sessile Describes an organism that remains attached to a surface for its entire life and does not move
Created by: kmaddix