Grade Level: 6-10
Become a member of the fieldwork team and classify the animals
Quiz Answer Key
1. All of the following are true of true bugs
Answer: C. They are difficult to find in the
Eighty percent of all species on Earth are insects and there are
more than 40,000 different species of true bugs in the world.
2. Which of the following is not a difference
between arachnids and insects?
Answer: B. Arachnids fly; insects crawl
Arachnids don’t have wings, so they don’t fly, but
most adult insects have wings to fly.
3. If an animal doesn’t have a backbone
Answer: A. An invertebrate
An animal with an exoskeleton, or external skeleton, has no internal
backbone so it’s an invertebrate.
4. If an animal goes through a pupal stage,
Answer: B. Goes through complete metamorphosis
The pupal stage is one phase of development for an insect going
through complete metamorphosis.
5. Which of these is a characteristic of all
Answer: B. They have sucking mouthparts
Along with stink glands, sucking mouthparts are an identifying
characteristic of all true bugs.
6. True bug is to insect as
Answer: B. Human is to mammal
All true bugs are insects, but not all insects are true bugs.
Likewise all humans are mammals, but not all mammals are humans.
7. The term for a scientist who works with insects
Answer: A. Entomologist
An entomologist is a scientist who specializes in studying insects.
8. A Venn diagram is a good way to show how
different animal groups
Answer: C. Both of the above
Venn diagrams are useful for both comparing and contrasting information.
9. True bugs make up a scientific group that
Answer: B. Some insects
Insects that have specific characteristics like sucking mouthparts
and stink glands are categorized as true bugs.
10. When an animal has hands, it probably also
Answer: C. A backbone
The presence of hands is a good clue that an animal probably has
11. Humans are
Answer: A. Vertebrates
Humans have backbones so they are vertebrates.
12. An animal that has a complete metamorphosis
goes through all these stages except:
Answer: A. Gland stage
The pupal and larval stages are two phases of development for
an insect going through complete metamorphosis.
13. Stink glands and sucking mouthparts are
both characteristics of
Answer: B. True bugs
True bugs are characterized by possessing stink glands and sucking
mouthparts and by having incomplete metamorphosis.
14. The best way to tell the difference between
insects is through
Answer: C. Both of the above
Entomologists are always observing the natural world around them,
but the eyes can deceive, it’s important to combine analysis
with observation to be successful.
15. All true bugs are insects but…
Answer: C. Not all insects are true bugs.
All true bugs belong in the category of insects, but there are
some insects like butterflies and ants that are
not true bugs.
Take the “Name-a-Bug”
Create the perfect name for a true bug.
Use articles and photos to look closely at insects.
For offline activities that encourage self-directed inquiry, check
Follow Up Thinking
Continue student discussion with these questions.
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