Population Changes
What is it called when new organisms are created?
Reproduction
What is a single pathway in a food web?
A food chain
What do we call a nonliving part of an ecosystem that an still impact living things?
An abiotic factor
TRUE OR FALSE: The sea lamprey is a natural predator in the Great Lakes
FALSE, it is an invasive species
TRUE OR FALSE: Trout do not have jaws and suck the blood out of their prey
FALSE
What do we call places or space to live
Environment/habitat
What do we call an organism that makes its own food from the sun
A producer
What is a living or dead component of an ecosystem?
A biotic factor
TRUE OR FALSE: The sea lamprey is the only reason the trout population was decreasing in the great lakes.
FALSE, dioxins also played a part
What organ do aquatic vertebrates (other than mammals) use to breath in the water?
Gills
What is another name for living things
Organisms
What is an organism that eats producers?
A consumer
What is the term for a bunch of interconnected food chains?
A food web
TRUE OR FALSE: The sea lamprey are part of a healthy ecosystem in the Atlantic ocean which includes tuna, swordfish, salmon and shark.
TRUE
Trout and sea lamprey both lay eggs. Which one of these organisms lays more eggs and dies once it has reproduced?
The sea lamprey
Why do we need food?
What do we call an organism that breaks down living material to get nutrients (for example, a mushroom)
A decomposer
What is the term for an organism which is not naturally found in a habitat
An invasive species
TRUE OR FALSE: The sea lamprey has no natural predators in the Great lakes.
TRUE
The trout was affected by an abiotic pollutant in the Great Lakes. Name that pollutant.
Dioxin
What do we call a scientist that studies LIVING things
A biologist
What do we call the type of relationship where one animal eats another?
A predator/prey relationship
What is the name of the toxic chemical that may have impacted the population of the trout?
Dioxin
How did the sea lamprey manage to make their way from the Atlantic Ocean to the Great Lakes?
They attached themselves to shipping containers.
List five ways in which the trout and the sea lamprey are DIFFERENT.
Answers may vary.