What is hurricanes, tornados, floods, volcanos, fires
100
All living and nonliving things live in an____
What is ecosystem
100
Why would some natural disasters actually be a good thing?
What is it clears out dead plants and animals, giving more room for new ones to grow
100
Give an example of two animals that live together and the relationship is healthy
What is ex. cat/dog, fish/snails
100
What are some ways humans pollute the air?
What is spraying chemicals, smoking, fires
200
The entire species had died out and was gone forever
What is extinct
200
Substances that are very harmful to humans and other organisms.
These substances may be poisonous, cause disease, start fires or react dangerously with other substances.
What is hazardous waste
200
Give an example of an animal that is endangered
What is rhinos, pandas, bengal tigers
200
Name a way a human can disturb the balance in an ecosystem
What is cutting down trees, hunting, pollution
200
How are ecosystems balanced?
What is they all live and work together, making sure no one population becomes too dominant (strong).
300
Populations of some species have been reduced so much that they are in danger of becoming extinct
What is endangered
300
The process of gradual change from one community or organisms to another.
What is succession
300
Give an example of an animal that is extinct
What is dinosaurs
300
Give an example of a host and a parasite
What is a tick and human/animal, ring worm and a human/animal
300
Why would animals become endangered or extinct?
What is people killing them for food or resources, environmental changes, not adapting
400
The organism that is harmed because another is using it as a source for food
What is a host
400
The organism that is helped by living on another.
What is a parasite
400
What happens when resources decrease in an ecosystem?
What is the organism either leaves to go somewhere else or dies.
400
Explain a positive relationship living near other organisms
What is doing things that do not affect or hurt the other organisms (ex. beetle travels with the ant, but does not take it's food- it just takes the left overs)
400
Why would it be beneficial to be in a group or pack?
What is it provides more protection and you can hunt together to get more food.
500
An organism that competes successfully is more likely to survive and reproduce.
What is survival of the fittest?
500
When two or more species must use the same limited resources.
What is competition?
500
Explain why when one thing happens to one population, it is a chain of events.
What is everything effects each other in an ecosystem, especially in the food chain.
500
Explain what a harmful relationship would be in an ecosystem?
What is when one is taking away resources from another and not giving anything back.
500
Explain why it is important that ecosystems are balanced.
What is it is healthier, provides organisms with all of the needs needed to survive, keeps things even.