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P6 Science · Chapter 5brightbit.net/worksheets

Interaction — Living Together

Name: ______________________Class: ________Date: ____________Score: ____ / 10
  1. 1.

    A clownfish lives among the tentacles of a sea anemone. The clownfish gets protection and the sea anemone gets food scraps from the clownfish. This relationship is called —

    (a) Parasitism(b) Competition(c) Mutualism(d) Predation
  2. 2.

    A tick attaches to a dog and feeds on its blood. The tick benefits but the dog is harmed. This is an example of —

    (a) Mutualism(b) Parasitism(c) Competition(d) Predator-prey
  3. 3.

    Two species of birds in a forest compete for the same nesting sites. This is an example of —

    (a) Mutualism(b) Parasitism(c) Competition(d) Decomposition
  4. 4.

    In a predator-prey relationship, a lion hunts and eats a zebra. The lion is the —

    Answer: ____________________________________

  5. 5.

    Bees collect nectar from flowers for food. In return, they help the flowers by spreading pollen. This is an example of —

    (a) Parasitism(b) Competition(c) Predator-prey(d) Mutualism
  6. 6.

    If two different plant species are growing close together in a garden, they may compete for —

    (a) Oxygen only(b) Sunlight, water, and nutrients(c) Carbon dioxide only(d) Animals to eat them
  7. 7.

    Mistletoe is a plant that grows on trees and takes water and nutrients from the tree. The tree is weakened. This is an example of —

    (a) Mutualism(b) Parasitism(c) Competition(d) Predation
  8. 8.

    Why does the predator-prey relationship help keep an ecosystem balanced?

    (a) Predators eat all the prey, keeping numbers at zero(b) Predators control the prey population, preventing overpopulation(c) Prey animals become stronger and do not need food(d) Predators and prey always have equal numbers
  9. 9.

    A remora fish attaches itself to a shark and feeds on leftover food scraps. The shark is neither helped nor harmed. This relationship is called —

    (a) Mutualism(b) Parasitism(c) Commensalism(d) Competition
  10. 10.

    In a forest, fungi grow on the roots of trees. The fungi help the tree absorb water and minerals, and the tree provides the fungi with sugars. This is an example of —

    (a) Parasitism(b) Competition(c) Predation(d) Mutualism

Answer key — P6 Science: Interaction — Living Together

For parents. Step-by-step explanations for every question are free on brightbit.net.

  1. 1.(c) Mutualism
  2. 2.(b) Parasitism
  3. 3.(c) Competition
  4. 4.predator
  5. 5.(d) Mutualism
  6. 6.(b) Sunlight, water, and nutrients
  7. 7.(b) Parasitism
  8. 8.(b) Predators control the prey population, preventing overpopulation
  9. 9.(c) Commensalism
  10. 10.(d) Mutualism
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