Plants and Animals
Powerhouse of the cell?
Mitochondria
What is the main source of energy for most ecosystems?
Sun
Name one factor that can limit population size.
Food, water, space, predators, disease (any one)
Cell
The smallest unit of life that carries out all basic life functions.
Ecosystem
All the living and nonliving things interacting in an environment.
Photosynthesis uses sunlight to make what?
Glucose
Which organisms make their own food?
Producers
What happens to a population if food becomes scarce?
The population decreases
Photosynthesis
The process plants use to make food (glucose) from sunlight, carbon dioxide, and water.
Biotic and Abiotic
Living and non living
What 3 things are needed for photosynthesis?
CO2, Water, and Sunlight
What do decomposers return to the soil?
Nutrients
Why is biodiversity important for ecosystem stability?
It helps ecosystems survive changes and disturbances
Cellular respiration
The process by which cells break down glucose using oxygen to release energy.
Competition
When organisms fight for the same limited resources.
ATP
Why is energy lost as it moves up an energy pyramid?
Energy is used for life processes and released as heat
What is an invasive species?
A non-native species that causes harm to an ecosystem
Chloroplast
The organelle in plant cells where photosynthesis occurs.
Mutualism
A relationship in which both organisms benefit.
How are photosynthesis and cellular respiration connect?
Cellular respiration uses the products of photosynthesis
Which trophic level has the most energy?
Producers
What happens when two species need the same limited resource?
Competition occurs
Mitochondria
The organelle where cellular respiration takes place.
Trophic level
A position an organism occupies in a food chain or energy pyramid.