Unit 1 Lesson 1 Flashcards
(20 cards)
anything that has mass and takes up space
matter
every organism is made of
matter
Matter is made up of ____
atoms
_____ is the smallest unit of a substance that maintains the properties of that substance
an atom
Different types of atoms are called _____
elements
There are nearly 100 different types of _____ that are present in Earth
elements
They are the most basic substances
elements
A _____ is made up of two or more atoms held together by chemical bonds
molecule
_____ are what make up cells in our bodies and all the substances our bodies use
Molecules
The _____ stored in the bonds of food molecules supplies the energy that cells and organisms need to stay alive
energy
Organisms need a constant source of energy to _____, _____, and _____
live; grow; reproduce
_____ is the ability to cause change
Energy
When an organism eats food, it _____ that substance and it releases _____
breaks down; the energy stored within it
All organisms need a source of _____
energy and matter
_____ must get their energy and matter from the environment
producers
_____ are an example of a producer
Plants
an organism that uses energy and matter from the environment to make its own food molecules
Producer
an organism that gets energy and matter by eating other organisms
Consumer
an organism that gets energy and matter by breaking down the remains of other organisms that have died
Decomposer
They break down the wastes expelled by other organisms
Decomposer
