1. What are mandibles?
A. Hard shells made of protein and chitin
B. Club-shaped appendages used for crushing prey
C. Sensory organs made of modified cuticle
D. Appendages used to crush and bite food before ingestion
2. Sessile filter feeders wrapped in a heavily calcified shell are known as
A. barnacles.
B. crustaceans.
C. tongue worms.
D. isopods.
3. Which of the following body parts covers a crustacean’s cephalothorax?
A. Cheliped
B. Swimmeret
C. Abdomen
D. Carapace
4. Filter-feeding crustaceans feed on
A. some types of lobsters.
B. microscopic crustaceans.
C. slow-moving crabs.
D. barnacles and plankton.
5. How many legs do decapods have?
A. Four
B. Six
C. Eight
D. Ten
6. Which of the following body parts do chelicerates lack?
A. Appendages
B. Pedipalps
C. Exoskeletons
D. Mandibles
7. When spiracles on an arachnid’s body open, they let in
A. oxygen.
B. food.
C. light.
D. sound.
8. Of the four adaptations that enable arachnids to conserve water, which one also removes wastes?
A. Waterproof cuticle
B. Trachea
C. Book lungs
D. Malpighian tubules
9. Scorpions and spiders share the ability to
A. detect prey with their chelicerae.
B. immobilize prey by injecting venom.
C. grab their prey with huge pincers.
D. hunt or trap prey with silk webs.
10. Which of the following chelicerates are parasites of other animals?
A. Spiders
B. Scorpions
C. Horseshoe crabs
D. Ticks
11. Insects that look like miniature adults when they hatch have a pattern of development called
A. incomplete metamorphosis.
B. gradual metamorphosis.
C. partial metamorphosis.
D. complete metamorphosis.
12. Which adaptation was most important in enabling insects to live on land?
A. Development of true independent flight
B. Evolution of specialized mouthparts
C. Organization of complex social structures
D. Ability to control water and gas exchange
13. All insects have three
A. compound eyes.
B. jointed legs.
C. sets of wings.
D. body parts.
14. Insects reduce the amount of energy they use for flight by
A. using kinetic energy stored in their flexible cuticles.
B. activating strong muscles to move their wings.
C. developing especially efficient flying techniques.
D. relying on wind patterns to provide lift.
15. What does the proboscis allow some insects to do?
A. Suck and chew food
B. Feed on blood or plant nectar
C. Manipulate food into the mouth
D. Crush leaves and plant stems
16. What term describes an organism that carries a disease from one host to another?
A. Pathogen.
B. Pest
C. Vector
D. Parasite
17. Integrated pest management may include using traps and introducing
A. genetically modified plants.
B. specific neurotoxins.
C. new insecticides.
D. predators of pests.
18. Insecticides are chemical compounds that
A. slow growth of plants that pests eat.
B. kill insects and other arthropods.
C. speed growth of particular insects.
D. interrupt reproduction of insect pests.
19. Arthropods can spread disease to humans when the arthropods
A. feed on the humans.
B. suffer from the disease.
C. bite animals that humans eat.
D. are killed by insecticides.
20. Integrated pest management reduces the number of pests by
A. spraying pests with chemicals.
B. managing the pests’ ecology.
C. genetically modifying crops.
D. introducing competing insects.
21. Which of the following is an unintended consequence of insecticide?
A. Toxicity to organisms other than the target insect population
B. Decrease in the size of the target insect population
C. Inability of the target population to reproduce
D. Difficulty genetically altering plants affected by the target insect population
22. Arthropods can successfully compete for resources with humans because of their
A. circulatory systems.
B. hard exoskeletons.
C. huge numbers.
D. keen senses.
23. Some insecticides can be dangerous to humans because they can
A. accumulate in predator species.
B. kill only specific insects.
C. break down quickly.
D. kill all types of arthropods.
24. Introducing ladybugs that prey on an insect that is eating a crop is a type of
A. biomagnification.
B. integrated pest management.
C. genetic modification.
D. insecticide resistance.
25. Adaptations that conserve water have allowed some arthropods to
A. attract mates.
B. live on land.
C. develop flight.
D. molt safely.
1. What are mandibles?
D. Appendages used to crush and bite food before ingestion
2. Sessile filter feeders wrapped in a heavily calcified shell are known as
A. barnacles.
3. Which of the following body parts covers a crustacean’s cephalothorax?
D. Carapace
4. Filter-feeding crustaceans feed on
B. microscopic crustaceans.
5. How many legs do decapods have?
D. Ten
6. Which of the following body parts do chelicerates lack?
D. Mandibles
7. When spiracles on an arachnid’s body open, they let in
A. oxygen.
8. Of the four adaptations that enable arachnids to conserve water, which one also removes wastes?
D. Malpighian tubules
9. Scorpions and spiders share the ability to
B. immobilize prey by injecting venom.
10. Which of the following chelicerates are parasites of other animals?
D. Ticks
11. Insects that look like miniature adults when they hatch have a pattern of development called
A. incomplete metamorphosis.
12. Which adaptation was most important in enabling insects to live on land?
D. Ability to control water and gas exchange
Hm… I like some of the other responses too…
13. All insects have three
D. body parts.
14. Insects reduce the amount of energy they use for flight by
A. using kinetic energy stored in their flexible cuticles.
15. What does the proboscis allow some insects to do?
B. Feed on blood or plant nectar
16. What term describes an organism that carries a disease from one host to another?
C. Vector
17. Integrated pest management may include using traps and introducing
D. predators of pests.
18. Insecticides are chemical compounds that
B. kill insects and other arthropods.
19. Arthropods can spread disease to humans when the arthropods
A. feed on the humans.
Hm. This one is probably the best…
20. Integrated pest management reduces the number of pests by
B. managing the pests’ ecology.
21. Which of the following is an unintended consequence of insecticide?
A. Toxicity to organisms other than the target insect population
22. Arthropods can successfully compete for resources with humans because of their
C. huge numbers.
23. Some insecticides can be dangerous to humans because they can
A. accumulate in predator species.
24. Introducing ladybugs that prey on an insect that is eating a crop is a type of
B. integrated pest management.
25. Adaptations that conserve water have allowed some arthropods to
B. live on land.