Organisms
What is a living thing called?
Organism
What is population density?
The number of individuals per unit area.
What is competition?
When organisms compete for the same resources.
What is the water cycle?
The continuous movement of water through evaporation, condensation, and precipitation.
What is a producer?
An organism that can make its own food.
Name one biotic factor in an ecosystem
Trees, animals, bacteria, etc.
What is emigration?
Leaving a population.
What is predation?
An interaction where one organism kills another for food.
Name one cycle of matter.
Carbon, nitrogen, oxygen, or water cycle
What do herbivores eat?
Plants.
What is the difference between biotic and abiotic?
Biotic factors are living things; abiotic factors are non-living things.
Define immigration
Moving into a population.
Explain mutualism.
A relationship where both species benefit.
What is the law of conservation of mass?
Matter is neither created nor destroyed in chemical or physical changes.
What is a decomposer?
An organism that breaks down waste and dead organisms.
What is a habitat?
An environment that provides the things a specific organism needs to grow, live, and reproduce.
What limits population growth?
Factors like food, water, climate, space, and shelter.
Describe commensalism.
One species benefits, and the other is neither helped nor harmed.
Describe evaporation
The process where molecules at the surface of a liquid absorb energy and change to gas.
What is a carnivore?
An organism that eats only animals.
Define 'species.'
A group of organisms that can mate and produce fertile offspring.
Give an example of a limiting factor.
Lack of food or water.
What is parasitism?
A relationship where one organism lives on or inside another and harms it.
Explain cellular respiration's role in the carbon cycle.
Organisms take in oxygen and release carbon dioxide, contributing to the cycle.
Define scavenger.
An organism that feeds on the bodies of dead organisms.