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(GRADE 6) HARD- ECOSYSTEM

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    HARD 20PTS
  •   Study   Slideshow
  • How do animals use pheromones?
    Ants use them to track and guide their way. Honeybees touch antennae to distinguish mates from intruders.
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  • Explain Interspecific Interactions.
    Organisms of different species perform interspecific interactions.
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  • Why does competition occur in an ecosystem?
    competition occurs when two or more organisms struggle to get and use the same resources at the same time.
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  • Why does competition exist on plants?
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  • Describe the relationship between a predator and a prey.
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  • How does Predation controls and balances the population growth?
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  • What is a symbiotic relationship?
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  • What is commensalism?
    In commensalism, one organism is benefitted while the other is neither benefitted nor harmed.
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  • Give 2 examples of commensalism.
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  • Give 2 examples of mutualism.
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  • Describe a healthy ecosystem.
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  • Give 3 importance of a Tropic Rainforest
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  • What are the 4 layers of the Tropic rainforest?
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  • Give 3 importance of coral reefs.
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  • Describe the formation of a Barrier reef
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  • How do trees in mangrove swamps survive with high saltwater content?
    Trees in mangrove swamps are impenetrable because they can stand saltwater and their prop roots can eliminate salt content before absorbing water into the plant
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