M7:Ecosystem Concepts

Hydrotropism

• Response to water.

• Response to light.

• Response to gravity.

• Response to temperature.

Dormancy

• Inactivity in a mature seed before it starts to grow.

• A period of active growth in plants.

• The process of seed germination.

• A state of rest in animals during winter.

Secondary Consumer

• Herbivores that eat plants

• Carnivores that eat primary consumers

• Producers that create energy

• Decomposers that break down organic matter

Cellular Respiration

• Process of breaking down food to produce energy

• A method of photosynthesis

• A type of cellular division

• A form of energy storage

Food Web

• A diagram that shows the feeding relationship among many different organisms

• A chart that lists all the species in an ecosystem

• A representation of energy flow in a single food chain

• A map of the geographical distribution of species

Stimuli

• Events that evoke a specific functional reaction.

• Random occurrences without impact.

• Unrelated actions that do not provoke a response.

• Passive observations without any effect.

Biome

• Region of Earth where climate determines the types of plants and animals that live there.

• A type of animal that can adapt to any environment.

• A specific type of weather pattern that occurs in a location.

• A geographical area defined by its geological features.

Tropism

• Growth movement where direction of stimulus determines direction of growth.

• Random growth in any direction regardless of stimulus.

• Growth that occurs only in response to light.

• Movement away from the source of a stimulus.

Nitrogen Cycle

• Movement of nitrogen between the environment and living things

• A process that converts nitrogen gas into ammonia

• The process of nitrogen being absorbed by plants only

• A cycle that only occurs in aquatic environments

Assimilation

• The process of converting sunlight into energy

• The absorption and incorporation of nitrogen into plant and animal compounds

• The breakdown of organic matter into simpler substances

• The transfer of nutrients from one organism to another