Getting Ready
Chapter 1 lesson 1
Chapter 1 lesson3
Chapter 1 lesson 2
Chapter 2
100
an instrument used to enlarge tiny organisms
What is a microscope
100
the basic unit of structure and function of all living things
What is a cell
100
made of the heart, blood, and blood vessels
What is circulatory system
100
cells work together to form
What is tissue
100
the smallest group for classifying living things
What is species
200
measurement used by scientists
What is the metric system
200
green substance found only in plant cells, makes food
What is chloroplast
200
the group of organs and tissues that exchange carbon dioxide for oxygen
What is respiratory system
200
several kinds of tissue work together to form
What is organs
200
organizing things into groups based on how things are alike
What is classification
300
the force that pulls objects to each other or the earth
What is gravity
300
directs all activity of a cell
What is the nucleus
300
what is the major organ of the digestive system
What is the stomach
300
the lungs, the heart, and all organs rely on the conective tissue called
What is blood
300
an animal with a backbone
What is a vertebrate
400
a factor, such as size that can have more than one condition
What is a variable
400
the structure that protects the cell, holds contents together, and controls what goes in and out
What is cell membrane
400
system that allows the body to move
What is muscular system
400
organs that work together to do a job
What is an organ system
400
the largest group for classifying living things
What is kingdom
500
observe and ask a question
What is the first step in the scientific method
500
singular celled organism without a nucleus
What is bacteria
500
the system that breaks foods in chemical nutrients that the body can use
What is digestive system
500
a plant with tubes
What is vascular
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