In order to live and grow, plants require water, sunlight, nutrients, and this other requirement
Air
In this image, the deer gets the energy it needs from this organism

Grass
Plants use this gas as part photosynthesis and then create clean oxygen for us to breathe
Carbon Dioxide
An animal that is hunted and eaten by a larger animal is called this
Prey
The place where an organism lives and finds what it needs to survive is called this
Habitat
The process that plants use to make food
Photosynthesis
The original source of energy for nearly all organisms on Earth
The Sun
Plants are known as this type of organism because they are able to make sugar, which is their main source of matter and energy.
Producers
An animal that hunts and eats another animal is called this
Predator
A community of different organisms that interact with each other in an area is this
Ecosystem
The two things that are made when plants go through the photosynthesis process
Sugar and Oxygen
The 3 things all animals need to live and grow
Water, air, food
When animals eat plants or other animals, the matter in the food is used to help them grow, move, and this other bodily process
Repair (from injuries or illness)
In a grassland, lions and hyenas both hunt zebras and other herbivores. Because they depend on the same food source, these two animals are known as this
Competitors
This group of penguins living in the same area at the same time is known as this

Population
In addition to sunlight, plants need these two other things in order for photosynthesis to occur
Water and Carbon Dioxide
All of the animals in this image are considered to be this type of organism. 
Consumers
Matter from food moves is converted to energy and moves through a food chain when this happens
One organism eats another
This organism is an example of one that decomposes, or breaks down, dead organisms and waste
Fungi, bacteria, or worms
An ecosystem can't exist without this combination of air, water, soil, temperature, and all living things interacting together. This combination is called this.
Environment
Carbon dioxide and oxygen are able to move in and out of a plant through these openings, located on the underside of a leaf
Stomata
These recyclers of nature complete the flow of energy by turning once-living matter into nutrients plants can reuse
Decomposers
Animals obtain gases, food, and water from the environment and release _________ back into the environment.
Waste matter
When a population of predators increases, or a competing predator moves into the environment, this occurs to the resources available
Decreases
In a forest, woodpeckers eat insects from tree bark while robins hunt worms on the ground. Both are birds, but they don't compete for food because each fills a different one of these
Niche