What do both plants and animals use energy to do?
Grow
What are the two things that all plants must have to live and grow?
Air and Water
What is the role of a decomposer in a food web?
It breaks down dead plants and animals and restores matter to the soil.
How is soil partially created by decomposers?
Decomposers break down plant and animal matter to help create soil.
All energy transferred through food chains and webs comes from–
The Sun
What can a human consume to gain energy?
Plants or animals
Which of these materials provides a plant with matter needed for both food production AND growth?
Gases in the air, Sunlight and coca cola OR Dry soil
Gasses in the air
What is a food chain?
The path of energy from one organism to another.
Decomposers are important in nature because they–
release gases into the air as they break down dead material, which can be used by plants.
What must occur for an organism to survive in its environment?
The organism's basic needs must be met.
All the energy that is passed up the food chain started out as–
Sunlight
All of the following are a plant’s basic needs EXCEPT–
Movement, Water, Soil, Air
Movement
What is the role of a producer?
It uses energy from the Sun and matter, water, and air to make food.
Plants make glucose when–
carbon dioxide, sunlight, and water combine in special cells inside the plant.
What are some basic needs of an organism?
Food, water, air, shelter, and space
Plants are different from animals because–
plants don't have to consume other organisms to get energy.
The most accurate way to measure plant growth is by measuring–
the mass of the plant.
To which organism can the food of almost any kind of animal in a food web be traced back?
Plant
How are carbon dioxide and oxygen cycled in nature?
Plants take in carbon dioxide and give off oxygen
An organism that uses sunlight to make its own food for energy is called a–
Producer
What do the arrows in the food chain below show?
Sun → grass → grasshopper → toad → snake → hawk
The direction the energy moves in a food chain
A plant grown in a container with water only proves that–
a plant can grow without soil.
Which of the following is a likely food chain?
Acorn → mouse → snake → hawk
Mouse → acorn → snake → hawk
Hawk → acorn → snake → mouse
Acorn → mouse → snake → hawk
What does a compost pile help create?
Soil
What can occur when a new species is introduced into an ecosystem?
The ecosystem can become unbalanced.