Ecology
Plant Defenses
Symbiotic Relationships
Energy in Ecosystems
Plant Growth Needs
100

This is the study of interactions among organisms and their environment.

What is ecology?

100

These sharp structures protect plants from being eaten.

What are thorns?

100

This relationship benefits both organisms.

What is mutualism?

100

These organisms make their own food using sunlight.

What are producers?

100

Plants need this gas from the air to perform photosynthesis.

What is carbon dioxide?

200

These are the nonliving parts of an environment like air, water, soil, and sunlight.

What are abiotic factors? 


200

Some plants produce these chemicals to make animals sick or taste bad.

What are toxins (or poisons)?

200

This relationship benefits one organism while the other is unaffected.

What is commensalism?

200

These organisms must eat other organisms for energy.

What are consumers?

200

This provides the energy plants need to make food.

What is sunlight?

300

This term describes all the living and nonliving parts of an environment together.

What is an ecosystem? 

300

This defense allows a plant to mimic another organism or blend into its surroundings.

What is camouflage?

300

This relationship benefits one organism and harms the other.

What is parasitism?

300

These organisms break down dead matter and return nutrients to the soil.

What are decomposers?

300

This process allows plants to make glucose.

What is photosynthesis?

400

This is the largest number of individuals an environment can support over time.

What is carrying capacity?

400

This sticky or irritating substance discourages herbivores from eating leaves.

What is sap (or irritating oils)?

400

Bees pollinating flowers is an example of this type of symbiosis.

What is mutualism?

400

This diagram shows how energy moves through trophic levels.

What is an energy pyramid?

400

This nutrient (N) helps plants grow leaves and stems.

What is nitrogen?

500

This is any factor, living or nonliving, that limits population size.

What is a limiting factor?

500

Some plants release chemicals into the air when they are being eaten, signaling nearby plants to activate their defenses.

What is chemical signaling (or plant communication)?

500

Fleas living on a dog demonstrate this relationship.

What is parasitism?

500

This shows multiple connected food chains.

What is a food web?

500

This factor refers to the temperature and weather patterns of a region.

What is climate?