Cells
Our World
Our Past
Classifying Organisms
Everything!
100
A _______________ is the smallest unit that makes up all living things.
cell
100
A __________ is an animal's home.
habitat
100
True or False: An organism that is no longer alive on earth is endangered.
false-extinct
100
The smallest group into which an organism is classified is a ____________.
species
100
True or False: A food web are the steps that organisms use to get food.
False-food chain
200
A group of cells that work together are _____________.
tissues
200
If a drought changed a large area of land into a desert, only plants that live with little ___________ would __________.
water; survive
200
A _____________ is evidence of an organism that lived in the past.
fossil
200
What is the largest group into which an organism is classified?
kingdom
200
True or False: A group of cells that work together make organs.
False-tissues
300
An __________ is a group of tissues that work together.
organ
300
________________ is created when harmful substances are added to Earth's water, air, and land.
Pollution
300
What is an animal that is no longer alive on earth?
extinct
300
Name one animal that could be categorized in the same group as a cat.
tiger, lion, cougar
300
The set of steps that organisms use to get food is called a _________________.
food chain
400
You would see ___________________ if you looked at pond water under a microscope.
microorganisms
400
Give one example of a producer.
grass, plants, cow
400
By looking at _______ fossils we can get an idea of how living things change over time.
fossils
400
Name two animals that would be consumers in a food chain.
crickets, snakes, bears, lions, etc
400
What is something you can find in a plant cell that you cannot find in an animal cell?
chlorophyll
500
You can tell by looking at a single cell under a microscope if it belongs to a plant, because only plant cells have ____________.
cholorplast
500
True or False: The largest group into which an organism is classified is species.
False -kingdom
500
True or False: By looking at fossils, we can get an idea of how living things change over time.
true
500
Scientists classify organisms into groups based on their ___________.
traits
500
If a population dies in an ecosystem, what might happen to other populations?
the other populations would start to die
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