Show:
Ecosystems
Land Biomes
Water Ecosystems
How Do Organisms Interact?
Energy Movement & Cycles
100
All of the living and nonliving things in an area are known as an _________.
Ecosystem
100
Together, all of the biomes make up the _____________.
Biosphere
100
True or false: water ecosystems only contain organisms that spend all of their time in the water.
False. Other organisms that may spend part of their time in or near a river still interact and become part of that ecosystem.
100
What things may plants compete over? Name two.
Water, sunlight, space
100
Where in the energy pyramid does most of the energy exist in an ecosystem?
The bottom, the base, or with the producers.
200
All of the populations in an area make up a ____________.
Community
200
Which biome is located near the equator and receives large amounts of rain.
Tropical Rainforest
200
How have animals' bodies adapted to live in the deep sea?
They are able to survive in crushing water pressures. Eyesight changes or "glowing" abilities may happen as well.
200
A relationship in which one species is always helped is known as ____________.
Symbiosis
200
Slime molds, earthworms, fungus, and banana slugs are examples of what organism that recycles waste and dead material.
Decomposers
300
The role than an organism has in an ecosystem is a ________.
Niche
300
In which biome do trees lose their leaves to save food and water during the winter?
Deciduous Forest
300
In what water ecosystem are estuaries found?
Wetlands or the edge of rivers
300
An organism that feeds off another organism is known as a ____________.
Parasite
300
This element makes up almost 8/10 of Earth's atmosphere.
Nitrogen
400
A group of organisms of one species that live in an area at the same time is called a ________________.
Population
400
Explain how characteristics of an organism help it survive in a desert.
Answers may vary...Plants have large root systems to absorb any rain. Animals rest or dig into the ground during the heat of the day, etc.
400
What is an estuary?
The mouth of a river where it flows into an ocean. Often a mixture of salt and fresh water. Often called a delta.
400
An organism that another organism is feeding off is known as a ____________.
Host
400
Photosynthesis puts what gas back into the air?
Oxygen
500
Describe the roles of a tree and squirrel in an ecosystem. How might they help one another?
A squirrel helps spread a tree's seeds. Trees provide shelter and food of a squirrel.
500
Why would birds migrate away from a deciduous forest during the winter?
Less food, uncomfortable temperatures, less protection from leaves in trees, etc.
500
How do coral reefs benefit humans?
They often protect shore lines from ocean storms. Organisms there provide new kinds of medicines. Many kinds of food.
500
Give an example of symbiosis in which both organisms benefit from the relationship.
Answers will vary. Teacher decision.
500
What is the niche, or role, or a producer?
A producer changes energy from the sun into food for energy.