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Is It Alive?

Characteristics and Necessities of Life

What is a stimulus? A change causes a response.
What is homeostasis? maintenance of a stable internal environment
What is asexual reproduction? one parent produces offspring
What is sexual reproduction? requires 2 parents to produce offspring
What does DNA do? determines the genetic traits of an organism
What does heredity mean? characterisitcs passed from one to another generation
What is metabolism? the sum of all cellular processes in an organism
Living things grow and _______ . develop
Food provides organisms with what? energy and raw materials
What is a cell? basic unit of structure and function in an organism
What type organisms are called producers? organisms that make their own food
What type organisms are called consumers? Organisms that must eat other organisms to get food.
What are the basic necessities of life? food, water, air, and a place to live
Your body is made mostly of ________. water
Living things use oxygen in what chemical process? The process that releases energy form food.
All living things share 6 common __________. characteristics
Chemicals, lights, sounds, and tastes are example of _________. stimuli
What type of reproduction do most animals use? sexual
Children resemble their parents because of ________. heredity
Some consumers get their food from dead organisms. What are these organisms called? decomposers
Created by: teestewart