Topic 1
What is a producer?
A producer makes its own food.
What do producers need an ecosystem to give them energy?
The sun
What do first level consumers eat?
Producers
What is an organism called that has to eat other organisms to get energy?
Consumers
What is an organism called who only eats plants?
Herbivore
What is an organism called if they eat both plants and animals?
Would building a shelter and finding mates be a learned behavior or an instinctive behavior?
Instinctive
Why do most organisms compete for resources?
They are often limited
That is a learned behavior.
What is an organism called if they only eat meat?
carnivore
Do populations of living things work independently or interdependently in their ecosystems?
Human activity
What might happen if an area has a dramatic decrease in rainfall?
The area would dry out and plants would die. Animals who eat those plants will be struggling to find food.
The ecosystem would collapse there would be no way for energy to enter the food web.
What is the difference between a learned behavior an instinct?
Learned behaviors involving learning something and experiences. Instincts do not have to be learned.
What is a long term relationship between different kinds organisms called?
symbiosis
What are some human activities that affect the wildlife population?
hunting, construction of homes and roads
What is the difference between a threatened organism and an endangered one?
A threatened organism is not yet endangered, but it could easily become endangered. Endangered organisms are likely to become extinct if steps aren't done to save them.
What is a non-native organism that was brought into the country called?
Exotic
What shows the amount of energy available at each level of a food chain?
Energy pyramid
What do decomposers do?
They break down the tissues of dead organisms.
Why are snakes considered a 2nd level consumer?
They eat the consumers that eat the producers
How does a desert environment determine which plants and animals live there?
Only plants adapted to live without a constant supply of water can survive in desert environments. Only animals that can eat those plants will live there.
How are organisms in a food chain arranged?
In order of what eats what
What can people do to help protect wildlife populations?
They can protect natural habits, ban the use of harmful chemicals