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Welcome to...
A Game of X’s and O’s
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Scoreboard
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X
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O
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Click Here if
X Wins
Click Here if
O Wins
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A scientist is investigating the process through which a
sperm cell joins with an egg cell during sexual
reproduction. This process is known as
a. meiosis
b. division
c. ovulation
d. fertilization
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D
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A researcher has developed a food web to describe a specific
ecosystem. What is the purpose of a food web?
a. to count the number of organisms in each population
b. to predict how a group of organisms will change over time
c. to show how matter and energy flow through the
ecosystem
d. to identify changes that have occurred in a species over
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C
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Millions of years ago, a dinosaur stepped in soft clay.
As sunlight baked and hardened the clay, the
footprint was preserved as a
a. rock
b. fossil
c. species
d. fossil fuel
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What is the role of this human body
system?
a. to bring oxygen to cells
b. to extract nutrients from food
c. to remove wastes from blood
d. to control growth and
development
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B
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An elephant breaks one of her tusks against a tree. A
few months later, she gives birth to a baby. Based
on this event, what is the likelihood that the baby
will be born with a broken tusk?
a. 0%
b. 25%
c. 50%
d. 100%
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What is one of the products of photosynthesis?
a. sunlight
b. oxygen
c. chlorophyll
d. carbon dioxide
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Tim wrote the following question as part of a
dichotomous key about flowers:
WHAT COLOR IS IT?
Is this question useful for a dichotomous key?
a. Yes, it will eliminate many organisms
b. Yes, it describes only a few organisms
c. No, it is not a question about a physical trait
d. No, it has many more than two possible answers
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The word symbiosis has a Greek origin. What is the
MOST LIKELY translation of the word in Greek?
a. hiding
b. building
c. making food
d. living together
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Which human body system is different in males and
females?
a. endocrine system
b. lymphatic system
c. reproductive system
d.
integumentary system
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