Extinction & What Are Its Causes

Define exotic
1. American
2. crazy dancer
3. non-native
True or False: An extinct animal is one that can be found in only one area of the United States.
1. True. These extinct animals live in Alaska.
2. False. The animal is gone forever.
True or False: An endangered animal has a population so small that they are likely to become extinct if steps to save them aren't taken immediately.
1. True
2. False
A threatened organism means
1. the organism is scared of its surroundings
2. the organism is likely to become endangered if they are not protected
3. the organism is likely to become endangered if they don't make friends
One example of a natural cause of decline in a population is
1. mild summer
2. no snow in the winter
3. natural disaster
4. a rainy day
The difference in a threatened organism and an endangered organism is
1. nothing, these are basically the same thing
2. a threatened organism is practically extinct
3. an endangered organism does not need a lot of protection
4. a threatened organism is not yet endangered, but it could easily become endangered if steps aren't taken to protect it
How many living organisms are there in a population that is extinct?
1. zero
2. none
3. zilch!
4. all of the above