other A
other B
other C
other D
other E
100
A vacuole is a membrane-covered structure that can store water, food, and _____.
a. oxygen
b. chlorophyll
c. energy
d. wastes
What is d. wastes
100
Predators are important in food webs and food _____.
a. graphs
b. chains
c. hunting
d. fishing
What is b. chains
100
As a hippopotamus feeds on grass, a small bird feeds on parasites, such as ticks, living on the hippopotamus. Which of these organisms have a mutualistic relationship?
A the hippopotamus and the bird
B the bird and the tick
C the tick and the hippopotamus
D the grass and the hippopotamus
What is A the hippopotamus and the bird
100
A dog has 6 puppies, 4 females and 2 males. Which statement best describes the
characteristics of the puppies?
A All of the puppies will look exactly like the mother.
B All of the puppies will look exactly like the father.
C The male and female puppies will look like both the mother and the father.
D The male puppies will look like the father, and the female puppies will look like the
mother.
What is C The male and female puppies will look like both the mother and the father.
100
Which would most likely cause a substance to melt?
A addition of heat
B removal of heat
C increase in mass
D decrease in mass
A addition of heat
200
Mitochondria supplies _____ for the cell.
a.energy b. oxygen
c. water d. elements
What is energy.
200
Which invention slows the growth of bacteria in food?
A refrigerator
B microwave oven
C dishwasher
D can opener
What is A refrigerator
200
Pollution is a(n) ______________ change in the natural
environment.
What is harmful
200
Which structures are found in both plant and animal cells?
A chloroplast and cytoplasm
B mitochondrion and chloroplast
C vacuole and cell wall
D nucleus and vacuole
What is D nucleus and vacuole
200
Four objects were dropped at the same time from the same height. Which object will most likely have the longest drop time?
A an iron ball
B a large book
C an open umbrella
D a horseshoe magnet
What is C an open umbrella
300
A lichen is actually two different organisms that live together. They are _____.
a. bacteria and algae c. protists and bacteria
b. fungi and bacteria d. algae and fungi 
What is d. algae and fungi.
300
1. Plants get energy to make food from ____________
What is sunlight
300
Which best describes how a hawk obtains energy differently than an oak tree?
A The hawk absorbs energy from the sun.
B The hawk absorbs energy from the soil.
C The hawk breathes in carbon dioxide.
D The hawk consumes other organisms.
What is D The hawk consumes other organisms.
300
As a city’s population grows, wooded areas are replaced by housing developments. What effect will this most likely have on the species in the wooded areas?
A More natural predators will move to the wooded areas.
B New species will migrate to the wooded areas.
C A few species will adapt to become predators.
D The population of some species will become zero.
What is D The population of some species will become zero.
300
Which of these is most responsible for objects being pulled toward the ground?
A air pressure
B magnetic field
C gravity
D friction
What is C gravity.
400
Which example best represents a chemical change taking place?
A a rusting nail
B a floating log
C a glass being broken
D a paperclip being bent
What is A a rusting nail?
400
9. In most plants, photosynthesis occurs in the chloroplast of the cells that are under the _____________.
What is epidermis
400
A vacuole is a membrane-covered structure that can store water, food, and _____.
.
What is waste.
400
A certain type of mite is a parasite of honeybees. Which statement best describes the relationship between the mites and the bees?
A The mites harm the bees by feeding on their blood.
B The mites get honey in return for helping the bees stay healthy.
C The mites help the bees find food but get nothing in return.
D The mites live in the hive of the bees but do not interact with the bees.
What is A The mites harm the bees by feeding on their blood.
400
An airplane is slowing down and flying lower as it prepares to land at an airport.
Which statement best describes the energy of the airplane?
A The kinetic energy decreases, and the potential energy decreases.
B The kinetic energy decreases, and the potential energy increases.
C The kinetic energy increases, and the potential energy decreases.
D The kinetic energy increases, and the potential energy increases.
What is A The kinetic energy decreases, and the potential energy decreases.
500
The top surface of a leaf has a waxy _____.
a. shine b. look
b. epidermis d. cuticle
What is cuticle?
500
Which force is responsible for the formation of the Appalachian Mountains?
A crashing ocean waves
B tectonic plate movements
C strong winds
D melting glaciers
What is B tectonic plate movements
500
15. A fully developed ecosystem supports the final stage of
succession, a(n) ______________ community.
What is climax
500
Which planet is farthest from the sun?
A Earth
B Mars
C Neptune
D Saturn
What is C Neptune
500
Which of these does a puppy inherit from its parents?
A dark fur
B cut paw
C barking to go out
D sitting upon request
What is A dark fur