1.
Four different living organisms are shown below.
Which statement is true for all of the organisms shown?
A. 
They carry out photosynthesis.
B. 
C. 
They contain at least one cell.
D. 
2.
Running to escape danger is an action that requires the nervous system to coordinate the interaction of which two body systems?
A. 
B. 
C. 
Reproductive and excretory
D. 
Circulatory and digestive
3.
The diagrams below show two organisms. How are these two organisms classified?
A. 
same kingdom, different species
B. 
Same kingdom, same species
C. 
Different kingdoms, same species
D. 
Different kingdoms, different species
4.
Which system produces most of the hormones in the human body?
A. 
B. 
C. 
D. 
5.
Each body cell of a goldfish contains 94 chromosomes. How many chromosomes are contained in a goldfish sex cell?
A. 
B. 
C. 
D. 
6.
The diagram below shows a green plant. What is the main function of the plant structure labeled A?
A. 
B. 
C. 
D. 
7.
Which unit is used to express the amount of energy in food?
A. 
B. 
C. 
D. 
Gram (Not drawn to scale)
8.
The drawing below represents a pair of chromosomes. The area labeled “bands” shows the location of
A. 
B. 
C. 
D. 
9.
Many cars today are designed to get better gas mileage than those made in the past. This change resulted from a need to
A. 
B. 
C. 
D. 
10.
A scientist crosses two different varieties of corn to produce a single variety that has traits from both parents. This technique is an example of
A. 
B. 
C. 
D. 
11.
What is the nutrient source for some fungi?
A. 
B. 
C. 
D. 
12.
Which event is the best example of competition between species in a pond environment?
A. 
dragonflies landing on lily pads
B. 
Frogs and toads eating flies
C. 
Lizards and snakes lying in the sun
D. 
13.
The diagram below shows a cross section of a bean seed.
Embryo
Seed coat
X
The function of part X in the bean seed is to
A. 
Provide protection for the embryo
B. 
Provide nutrients for the embryo
C. 
Prevent mutations in the plant
D. 
Fight off infections in the plant
14.
Grasses, shrubs, and trees are called producers because they make
A. 
B. 
C. 
D. 
15.
A broken bone heals through the process of
A. 
B. 
C. 
D. 
16.
Which substance do all living things require to survive?
A. 
B. 
C. 
D. 
17.
What advantage does a species that reproduces sexually have over a species that reproduces asexually?
A. 
There is greater variation among the offspring.
B. 
The offspring are identical to the parents.
C. 
Only one parent is necessary for reproduction.
D. 
No sex cells are needed for reproduction.
18.
What are produced in both the male and female reproductive systems in humans?
A. 
B. 
C. 
D. 
19.
Which life process is shown by the equation below? oxygen + food carbon dioxide + water + energy enzymes
A. 
B. 
C. 
D. 
20.
Which diagram below represents one type of human tissue? (The diagrams are not drawn to scale.)
A. 
B. 
C. 
D. 
21.
Which process is shown in the diagram below?
A. 
B. 
C. 
D. 
22.
The diagram below shows a food web for a community. Which organisms in the diagram are carnivores?
A. 
B. 
C. 
D. 
23.
The diagram below shows a material being cycled between the living and nonliving environments. Which material is being cycled?
A. 
B. 
C. 
D. 
24.
Which information would probably be most helpful to someone trying to identify a mineral sample?
A. 
Location and mass of the sample
B. 
Shape and texture of the sample
C. 
Hardness and streak of the sample
D. 
Color and size of the sample
25.
In which type of rock is the fossil imprint of a fern leaf most likely to be found?
A. 
B. 
C. 
D.