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Science Ch 3 Ecosystems and adaptations

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  • All the different populations that live together in an area make up
    a community
  • Give two examples of visual communication
    bright colored frogs, birds extending their wingspan to appear larger
  • What 3 things must an organism's habitat provide?
    food, water, and shelter
  • A bird building its nest in a tree is what form of symbiosis?
    commensalism
  • An early winter frost destroying certain crops would be considered a
    limiting factor
  • Give 2 examples of a predator adaptation.
    sharp talons on an eagle, speed of a cheetah
  • Give me 2 examples of auditory communication.
    birds calling their mate, dogs barking to warm others
  • define commensalism
    interaction between two species where one benefits and the other is neither harmed or benefits
  • If you have 30 rabbits in a cage measuring 5 square meters what is the population density?
    6 rabbits per square meter
  • Name the levels of an ecosystem from smallest to largest.
    organism, population, community, ecosystem
  • Name the 3 types of symbiosis
    mutualism, commensalism, and parasitism
  • A population is all the members of different species living in a particular
    community
  • Name two ways a population can decrease
    emigration and death rate
  • The study of how things interact with each other and with their environment is called
    ecology
  • Name a biotic factor in a prairie ecosystem.
    grass, bushes, organisms
  • Give me an example of a population and is which ecosystem they would live
    foxes in a forest
  • The smallest unit of ecological organization is
    an organism
  • what type of prey adaptation is it when an insect looks like a leaf?
    camouflage
  • The largest population that an area can support is called
    carrying capacity
  • The struggle between organisms to survive in the same habitat with limited resources is called
    competition
  • The nonliving parts of an ecosystem are called
    abiotic factors
  • What is population density?
    the number of individuals of a population in a specific area
  • An organism's particular role in a habitat or how it survives is called its
    niche
  • Name the 5 abiotic factors found in terrestrial ecosystems
    water, sunlight, soil, temperature, and oxygen
  • define parasitism
    interaction between two species where one benefits and the other is harmed
  • All the biotic and abiotic factors combined in an area make up
    an ecosystem
  • Name the two ways a population can increase
    immigration and increased birth rate
  • The behaviors and physical characteristics of a species that allow them to live successfully are called
    adaptations
  • Name 4 limiting factors
    lack of food, water, or space; weather conditions or natural disasters
  • A group of lions leaving the herd in search of food is called
    emigration
  • define mutualism
    interaction between two species and both species benefit
  • The place where an organism lives and that provides the things the organism needs is called its
    habitat
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