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- 1. Multiple Choice
A pearlfish spends the day inside the intestines of a sea cucumber. The fish emerges from the sea cucumber at night to feed on small crustaceans. The sea cucumber is not harmed by this.MutualismCommensalismParasitismPredation - 2. Multiple ChoiceA cymothoid isopod lives inside the mouth of a snapper fish. The isopod cuts blood vessels in the fish’s tongue, causing the tongue to get destroyed. The isopod then hooks it's pereopods, or legs, to the base of the fish’s tongue, essentially replacing the tongue. The isopod stays there for the rest of its life, feeding on blood, mucus, and stray pieces of food from the fish.MutualismCommensalismParasitismPredation
- 3. Multiple ChoiceA boxer crab carries a pair of small anemones in its claws. When approached by a predator, the crab waves the stinging tentacles of the anemones to deter the predator. The anemones eat the small particles of food dropped by the crab when it is feeding.MutualismCommensalismParasitismPredation
- 4. Multiple ChoiceAn alpheid shrimp digs and maintains a deep burrow where it lives with a goby fish. The goby fish sits at the entrance, keeping watch for predators, and signals the shrimp with a flick of its tail when it is safe to come out. If a predator swims by, the goby darts into the burrow and the shrimp retreats further inside.MutualismCommensalismParasitismPredation
- 5. Multiple ChoiceCorals feed off the byproducts of microscopic algae living within their own tissue, called zooxanthellae. The algae use photosynthesis to produce food for the corals, which use their energy to extract calcium from the seawater and build their skeletons. The zooxanthellae algae are protected by the hard coral and obtain nutrients from the coral.MutualismCommensalismParasitismPredation
- 6. Multiple ChoiceAthlete’s foot is a fungus growing between and around human toes. The fungus gets nutrients from the human skin. Athlete’s foot causes dry, scaly skin, itching, inflammation and even blisters.MutualismCommensalismParasitismPredation
- 7. Multiple ChoiceBacteria live in the intestines of cows and other organisms. Bacteria help to digest food for the cow. The cow provides a warm, moist environment to live.MutualismCommensalismParasitismPredation
- 8. Multiple ChoiceBald eagles can spot fish swimming in a lake from high altitudes, swoop down, and grab fish to feed their young back in the nest.MutualismCommensalismParasitismPredation
- 9. Multiple ChoiceA relationship between two organisms in which both organisms benefit.MutualismPredationParasitismCommensalism
- 10. Multiple ChoiceA coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?MutualismCommensalismParasitismPredation
- 11. Multiple ChoiceBacteria that live on the surface of our teeth require sugar from our food to survive. A by-product of their metabolism (body processes) decays the enamel of teeth. What type of symbiotic relationship is this?MutualismCommensalismParasitismPredation
- 12. Multiple ChoiceA sparrow will build its nest under the nest of an osprey. The smaller birds get protection because other predators will not mess with the osprey. The osprey are not helped nor harmed by the sparrow.parasitismcommensalismmutualism
- 13. Multiple ChoiceAnimals that eat only producers are called:ProducersPrimary ConsumersSecondary ConsumersTertiary Consumers
- 14. Multiple ChoiceFound at the base of a food chain (also known as autotrophs)ProducersPrimary ConsumerSecondary ConsumerTertiary Consumer
- 15. Multiple ChoiceOrganisms that break down dead or decaying organisms.DecomposersProducersConsumers
- 16. Multiple ChoiceA ______________ can be a primary, secondary, or tertiary consumerHeterotrophsAutotrophs
- 17. Multiple ChoiceHow many secondary consumers are shown in this food web?1423
- 18. Multiple ChoiceAll of the living and nonliving things that interact with each other in an area are called a/an ______.communitybiomepopulationecosystem
- 19. Multiple ChoiceDifferent populations living and interacting with each other in the same areaBiomeEcosystemCommunityNiche
- 20. Multiple ChoiceThe arrows in a food chain or web represent what?They point to the organism that is being eaten.It shows how sunlight flows within an ecosystem.They show what direction the energy is flowing between organisms.They represent how water is transferred within a habitat.
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