Key Vocabulary
What is change?
A scientist who studies the interactions of organisms with each other and their environment.
What is an ecologist?
When two populations compete for the same resource.
What is the cause of population decrease or death.
Food, water, shelter, space
What are basic resources for survival?
Organisms are always born and dying
What is an ecosystem like?
a group of the same species living in the same area.
What is a population?
Something staying the same over time
What is stability?
What plants provide for herbivores.
What is energy or food?
True or False: Competition only happens between different species.
What is false?
Increased population of an organism
What are more births?
the nonliving part of an ecosystem that affects survival, like water or sunlight?
What is an abiotic factor
Organisms need this to reproduce.
What are energy storage molecules?
One species that benefits and harms/eats another.
What is a predator?
If predators eat more prey, the prey’s food increases.
What is an indirect effect in an ecosystem?
More energy storage molecules available
What allows more reproduction?
an organism that eats other organisms.
What is a consumer
More energy storage molecules available for consumer populations?
What is a large resource population?
Consumers will run out of food and die.
What happens if all producers in an ecosystem die?
The energy storage molecules received from other organisms
What are resources from resource population?
Two populations competing for the same resource
What is competition?
a diagram that shows the transfer of energy from one organism to another in an ecosystem?
What is a food web?
The moon jelly's increase in population.
What is a decrease in the walleye pollock population?
A consumer that gets eaten by another consumer.
What is prey?
Sharing the same resource population
What is a competitive relationship?
Population size not affected by it being directly connected
What is indirect effect?