What is the rigid outer layer that supports a plant cell?
cell wall
What gas do plants take in for photosynthesis?
Carbon dioxide
Where does digestion begin?
Mouth
What is a living part of an ecosystem called?
Biotic factor
What is a population?
A group of the same species living in one area
What organelle contains chlorophyll?
chloroplast
What is the main source of energy for photosynthesis?
Sunlight
What organ breaks down food using acid?
Stomach
What is a nonliving part of an ecosystem called?
Abiotic factor
What happens when more individuals are born than die?
Population increases
What is the function of the vacuole in plant cells?
Stores water, nutrients, and waste
What green pigment helps capture light energy?
Chlorophyll
What long tube absorbs nutrients?
Small intestine
What do we call animals that eat plants?
Herbivores
What is limiting population growth called?
Limiting factors
What controls what enters and leaves the cell?
Cell membrane
What sugar is produced during photosynthesis?
Glucose
What organ produces bile?
Liver
What is a food chain?
A sequence showing how energy moves between organisms
What is carrying capacity?
Maximum population an environment can support
What part of the cell contains DNA?
Nucleus
What gas is released as a byproduct?
Oxygen
What is the function of the large intestine?
Absorbs water and forms waste
What role do decomposers play?
Break down dead organisms and recycle nutrients
Name one limiting factor.
Food, water, space, predators, or disease