Which of these BEST explains what happens to organisms when they die?
A. They are changed into decomposers.
B. They are converted into plants over time.
C. They are changed into igneous rock over time.
D. They are converted into nutrients by decomposers.
D: They are converted into nutrients by decomposers.
100
The organelle that holds all of the other organelles in place is the...
Cytoplasm
100
A food chain is given below.
plant > ant > lizard > snake > eagle.
What role do the ant and the lizard play in the food chain?
The ant is a primary consumer, and the lizard is a secondary consumer.
100
What is evolution?
Change over time
100
What system gets rid of liquid waste?
Urinary
200
The animals in an ecosystem must consume food to survive. What effect does this consumption have on the ecosystem?
A. Energy is moved through the food web.
B. Energy is moved through the food chain.
C. Energy is moved from the physical environment into living things.
D. Energy is returned from living things to the physical environment.
A: Energy is moved through the food web.
200
The movement of water across the cell membrane is called
Osmosis
200
The following are organisms living near a pond.
flower crane honey bee frog
Which of these BEST describes the flow of energy in a pond food chain?
A. flower > honey bee > frog > crane
B. frog > flower > honey bee > crane
C. honey bee > frog > crane > flower
D. crane > frog > honey bee > flower
A: flower > honey bee > frog > crane
200
What animal did Darwin study on the Galapagos Islands?
Finches
200
What system is the first line of defense?
Integumentary
300
Multiple organisms of the same species create a what?
Population
300
What type of reproduction results in offspring that looks exactly like the parent?
Asexual
300
What can happen if one organism in a food web is removed?
Overpopulation, some organisms can die off
300
What is natural selection?
Survival of the fittest
300
What system includes the lungs?
Respiratory
400
What percentage of energy goes from one level in an energy pyramid to the next?
10%
400
Which organelle creates protein?
Ribosomes
400
Where does all of the energy in our world come from?
Sun
400
What is an adaptation?
An Organism changing to fit its environment
400
What system is in charge of fighting off diseases?
Lymphatic
500
What type of symbiotic relationship is where both organisms benefit from each other?
Mutualism
500
Name the 4 things that all living things need
Food, Water, Air, Shelter
500
Who lives in a pineapple under the sea?
Spongebob Squarepants
500
Organisms that are better suited to their environment will do what two things?
Survive and reproduce
500
What body system protects and supports the body as well as creates red blood cells?