Vocabulary
A nonliving thing that affects the ecosystem
What is an abiotic factor?
A living thing that affects the ecosystem
What is a biotic factor?
The interaction between two animals in which one animal eats the other
What is predation?
Members of a population often cooperate in order to help one another survive
What is cooperation?
What is photosynthesis?
A system comprising all the biotic and abiotic factors in an area and all the interactions among them
What is an ecosystem?
A source or supply that benefits organisms
What is a resource?
When more than one individual or population in an ecosystem relies on the same limited resources
What is competition?
What resources do organisms compete for?
Mate, water, sunlight, food, shelter, space
How many teeth does a human adult have?
32
an organism's role in an ecosystem
What is a niche?
An organism's own living environment
What is a habitat?
A relationship between organisms or species that is helpful to both
What is mutualism?
Explain 2 ways carbon passes through our environment
Animals breathe out carbon dioxide. Trees take in the carbon and release oxygen.
Animals without a backbone are called _________
Invertebrates
Non-native species that is introduced to an ecosystem and has the potential to cause harm
What is an invasive species?
A resource that is in demand and will help control how many organisms can survive in an environment
What is a limiting factor?
One organism benefits while the other is harmed
What is parasitism?
Prairie dogs are small mammals that live in underground burrows in grassland prairie ecosystems. How do prairie dogs depend on these burrows?
Prairie dogs depend on the burrows for shelter
What is the largest bone in the human body?
Femur
Organisms from different species interact with each other in a way that benefits one or both of them
What is symbiosis?
Largest number of organisms an ecosystem can support
What is the carrying capactiy?
an association between two organisms in which one benefits and the other derives neither benefit nor harm
What is commensalism?
What is the difference between intraspecific and interspecific interactions?
Intraspecific interactions are between organisms within the same species; interspecific interactions are between organisms of different species.
What type of dinosaur is the Good Dinosaur?
Apatosaurus