Vocabulary
Energy Pyramid
Causes of Endangerment
Miscellaneous
Miscellaneous
100
What is an animal that is eaten by another animal
Prey
100
What is always located at the bottom of an energy pyramid?
A producer
100
What are the causes that might decrease population size 
availability of food

natural disasters

diseases

predation 

100

If humans do not help endangered populations, the organisms are likely to become...?

Extinct

100
what is migration?
the movement of a population of an organism from one place to another
200

is the number of offspring produced over a given time period


birth rate 
200
Where are humans NORMALLY on an energy pyramid?
At the top
200
Name one natural cause and one human cause of habitat loss
Natural: Flood, volcano, forest fire Human: Deforestation, pollution, net trawling (answers will vary)
200

What 6 things do all living things need to survive?

Food Water Air Shelter Space Sunlight

200
why do some organisms migrate? 
looking for food, shelter and raising offsprings


300
What is a consumer that breaks down tissues of decaying organisms called?
A decomposer
300
What is a herbivore?
An animal that only eats plants
300
what will happen when the death rate is more than the birth rate in a population? 
species will decrease in number, they will be threatened, then endangered and might become extinct
300

A healthy population that begins to decline may be listed as...?

THREATENED
300

what are endangered species?  

species whose population is at risk of extinction 
400
What shows how consumers in an ecosystem are connected to one another by what they eat?
A food chain
400
What does an energy pryamid show?
The amount of energy that is transferred from one level to the next
400
how can diseases cause population decrease? 
it may kill or harm different types of organisms, animals and plants. 
400

What is a community?

All the populations of organisms living together in an environment

400
what is extinction? 
when a species has completely died out and no individuals are left.
500
what is number of individuals that die during the same period of time?
death rate 
500
Why is an energy pyramid in the shape of a triangle?
Because there are more producers than consumers
500
what is exponential growth 

When a population is provided with ideal conditions; with an unlimited supply of resources, the population will grow exponentially (more/more rapidly)


500
How can humans help protect our ecosystems?
We can stop killing threatened and endangered animals, stop polluting, create laws to protect endangered animals, etc. (Answers may vary)
500
reasons of extinction 

Extinctions can occur after natural disasters, predation or damage to the environment e.g. pollution or deforestation


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