Primary Succession
Secondary Succession
Symbiosis
Invasive Species
Randomness
100

This is how primary succession begins.

What is newly formed or exposed rock?

100

This type of event can cause secondary succession to occur. It can be a fire or a flood.

What is a natural disaster?

100

Ouch! A mosquito is drinking my blood!

What is a parasite?

100

Fast reproduction, no natural predators, and ability to adapt are all characteristics of these.

What is an invasive species?

100

A relationship where the wrasse fish cleans out a sharks teeth.

What is mutualism?

200

These plants take over after grasses and weeds are established.

What are shrubs or small trees?

200

This green plant is one of the first organisms to grow after a disturbance to an ecosystem. Cows love it!

What is grass?

200

This occurs when two species benefit from a close relationship.

What is mutualism?

200

This is how zebra mussels arrived in america.

What is by boat or ship?

200

This could take hundreds to even thousands of years to complete.

What is primary succession?

300

Primary succession takes much longer than this type of succession.

What is secondary succession?

300

This is the final result of secondary succession.

What is a climax community?

300

This occurs when a caterpillar eats the leaves of a plant.

What is predation?

300

This is when an invasive species does a better job of getting resources than the native species.

What is out compete?

300

Birds often have a commensal relationship with trees by building these in them.

What are nests?

400

This is the final result of primary succession.

What is a climax community?

400

Unlike primary succession, this substance is always present during secondary succession.

What is soil?

400

A shark kills and eats a seal. A remora fish eats what is left over.

What is commensalism?

400

This is why ferral pigs were brought to America.

What is a food source in the early 1500s?

400

This species was brought to Australia to kill off the cane beetle. It has spread over half of the country,

What is the cane toad?

500

This pioneer species is actually a symbiote.

What is a lichen?

500

Secondary succession does not require this type of organism to occur.

What is a pioneer species?

500

This occurs when raccoons and chipmunks fight over food.

What is competition?

500

This species was brought to America from South America for the fur trade.

What is a nutria?

500

Humans have a mutualistic relationship with these microscopic organisms.

What are bacteria?