Study

Concept 1.3

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  • T/f Microorganisms are producers that small fish feed on to get energy.
    True
  • Small fish feed on...........that float on the surface of the sea.
    Microorganisms
  • St. Flying living organisms that build their nests on the top of mountain cliffs and dive deeply into the sea to eat
    Sea birds
  • T/f If the climate change is unsuitable, the population of a species decreases
    False
  • St. It is the harms that happen to air, water and soil due to human activities.
    Pollution
  • Give reasons. In case of fire forest, animals suffer from difficulty breathing.
    Because fire forests produce smoke that causes difficulty breathing of animals.
  • T or F Seabirds eat small fish that swim near the water surface.
    True
  • . Throwing plastic garbage and waste materials into a river cause..........
    Water pollution
  • St: . It is the number of organisms of one type of species live in an area. •
    Population
  • . If the climate change is suitable, the population of a species will.........
    Increase
  • St. They are organisms that are too small for people to see with only their eyes.
    Microorganisms
  • Give reasons. Food webs can be destroyed due to pollution.
    Because pollution negativelyaffects all living organisms infood webs.
  • What hapoens if. The climate change is unsuitable for a population of one type of species.
    The population of this specieswill decrease
  • T/f : Death of an animal due to pollution affects all other levels of the food web
    True
  • The consumers that exist at the top of any food chain are called...........
    Too predators /final consumer /apex predator
  • 2. If producers increase in an ecosystem, the number of primary consumers will.........
    Increase
  • St. 2. A human activity that leads to decreasing the number of fish and affecting many marine food webs.
    Overfishing
  • Heavy rain causes.......... which destroys desert ecosystems. .
    Floods