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Ch. 7 Test Wed. 12-11
Közreműködött: Welser
  • 1. The fennec, arctic, and gray foxes have different appearances because
A) their appearances change from season to season.
B) they belong to different kingdoms.
C) they are hybrids of two different species.
D) they have adapted to different environments.
  • 2. Which statement about adaptations is true?
A) Adaptations develop during the lifetime of an individual.
B) Adaptations occur when one individual develops better survival characteristics.
C) Adaptations include body structures but not behaviors.
D) Adaptations occur when survival characteristics are passed from one generation to another.
  • 3. What happens to a species that cannot adapt to changing conditions in its environment?
A) The species moves to another environment.
B) The individual organisms move to other environments.
C) The species may become extinct.
D) The individual organisms die.
  • 4. Which type of organisms get energy by breaking down the remains of dead organisms?
A) producers
B) consumers
C) decomposers
  • 5. How is a food chain related to a food web?
A) They are not related.
B) Food chains make up food webs.
C) Food webs make up food chains.
D) Food webs run parallel to food chains.
  • 6. An organism that harms another in a symbiotic relationship is a
A) parasite.
B) prey.
C) predator.
D) polluter.
  • 7. Why does the amount of available energy decrease at higher levels of the energy pyramid?
A) Other substances move up the pyramid and take away some of the energy.
B) Some energy is used by organisms at each level for their own life processes.
C) There are more upper-level organisms than lower-level organisms.
D) The upper-level organisms don’t need as much energy.
  • 8. When different species with similar needs live in an ecosystem with limited resources, what will happen?
A) Some organisms will become prey and eat other organisms.
B) One species will adapt so that they will have different needs.
C) They will compete for available resources.
D) They will live together peacefully. Some organisms will become prey and eat other organisms.
  • 9. Barnacles live on the side of a whale. The barnacles benefit but do not help or harm the whale. What kind of relationship is this?
A) symbolism
B) parasitism
C) commensalism
D) mutualism
  • 10. Which of the following would be the MOST useful adaptation for prey?
A) strong jaws and sharp teeth
B) a keen sense of smell
C) the ability to look like a stick or rock
D) a poisonous bite that can paralyze another organism
  • 11. As bees collect nectar from flowers, they spread pollen from one flower to another. Both species benefit. Which type of relationship is this?
A) commensalism
B) mutualism
C) succession
D) parasitism
  • 12. In the nitrogen cycle, where do animals get their nitrogen?
A) from the air
B) from decomposers
C) from plants
D) from the Sun
  • 13. Which best describes why competition occurs among animals in an ecosystem if resources are scarce?
A) Animals in an area have similar needs.
B) Different species of animals live in the same area.
C) Animals of similar species live in the same area.
D) Animals in an area have different needs.
  • 14. What purpose does the dormouse’s hibernation serve?
A) Allows it to escape from predators during the summer.
B) Protection from the cold.
C) Allows it to take a long nap because it is tired.
D) Protection from the heat.
  • 15. Why do living things need energy?
A) To look at the stars during the day.
B) To become extinct.
C) To survive.
  • 16. True or false. Green beans get energy from the sun. When we eat the green beans, we get their energy. Then we digest them.
A) False
B) True
  • 17. What do food webs show?
A) One possible path along which energy can move through an ecosystem.
B) The only possible path for energy to travel within an ecosystem.
  • 18. What does an energy pyramid show that a food chain does not?
A) Energy pyramids show the healthiest foods for humans to eat.
B) Energy pyramids shows how energy flows, it does not show what eats what.
  • 19. True or false. More energy is available at the bottom of a food chain because at the top, organisms use the energy for heat, food, and other needs.
A) False
B) True
  • 20. What will happen to an organism at the end of a food chain if they can’t get enough food to supply their energy needs?
A) They will die.
B) They will live.
C) Nothing will happen to them.
  • 21. Hawks are predators that have sharp claws and curved beaks. What kinds of adaptations are these?
A) Physical
B) Behavioral
C) Body Processes
  • 22. Why is it a bad idea for a parasite to kill its host?
A) If a parasite kills its host then it is happy.
B) If it kills its host then it will no longer have a place to live or food to eat.
C) It isn't a bad idea, if it kills it, then it doesn't have to worry about it anymore.
  • 23. True or false. Most fixed nitrogen is fixed by bacteria in the soil.
A) True
B) False
Azok a diákok, akik elvégezték ezt a tesztet, szintén elvégezték :
Ch. 7 lesson 1 p.167-169
Ch. 7 lesson 2 p. 170-175
Ch. 7 lesson 3 p. 176-177
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