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LIVING SYSTEMS. ECOSYSTEM. An environment that contains living & non-living things. A healthy ecosystem has a balance of space, resources and living things. COMMUNITY. The living part of the ecosystem. Organisms are dependent on one another. Energy is passed from one organism to another.

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ecosystem
ECOSYSTEM
  • An environment
  • that contains living & non-living things.
  • A healthy ecosystem has a balance of space, resources and living things.
community
COMMUNITY
  • The living part of the ecosystem.
  • Organisms are dependent on one another. Energy is passed from one organism to another.
population
POPULATION
  • The number of one type of organism.
habitat home
HABITAT – “Home”
  • The place an animal/plant naturally live.
  • It provides food, water, shelter & space.
  • The size of the habitat depends on the organism’s needs.
adaptations
ADAPTATIONS
  • • Organisms have structural adaptations, or physical attributes, that help them meet a life need. *FUR *SHARP TEETH
  • • Organisms also have behavioral adaptations, or certain types of activities they perform, which help them meet a life need.
  • *When deer feel that trouble is near, they turn their tales up to show white fur.
animal behavior
Animal Behavior
  • Behavior is the way a living thing acts.
  • A stimulus brings about a behavior.
  • A response is how the living thing reacts.
  • Inborn Behavior-
  • Behavior you have without being taught (instincts)
  • Birds fly south before winter
  • Reflex is a simple, automatic behavior controlled by nerves.
  • Blinking
  • Learned Behavior-
  • Behavior you have to be taught
  • Combing your hair, riding a bike and catching a ball.
niche
NICHE
  • A niche is the function that an organism performs in the food web of that community.
  • A niche also includes everything else the organism does and needs in its environment.
  • No two types of organisms occupy exactly the same niche in a community.
  • During its life cycle, an organism’s role in the community — its niche — may change.
  • *For example, what an animal eats, what eats it, and other relationships will change.
slide9

What do they eat?

CARNIVORE

-eats only other animals (consumers)

  • HERBIVORE
  • -eats only plants (producers)

OMNIVORE

-eats plants & animals

(producers & consumers)

slide10

What makes an ecosystem?

CONSUMER

-eat producers

  • PRODUCER
  • -makes their own food

2nd CONSUMER

-eat other consumers

DECOMPOSER

-feed on dead producers and consumers, and wastes.

parasite host
Parasite & Host
  • Parasite- is an animal that is helped by living with the animal it harms
  • Host- is the animal that is harmed by the parasite.
  • Example-
  • Fleas live on dogs. The flea is the parasite and the dog is the host. The flea takes blood for the dog.
parents
Parents
  • Parents give their young:
  • Food
  • Protection
  • Warmth
  • Parents need to keep babies warm because their smalls bodies lose heat quickly. Some animals are born without fur or feathers.
how do you care for the young
How do you care for the young?
  • Animals go through changes called life cycles.
  • Some animals DO NOT need care:
  • Sea turtles, butterflies, and tadpoles
  • Some animals DO need care:
  • Cats, dogs, rabbits, birds, and horses.
how animals live together
How Animals Live Together
  • Symbiosis- a special way that animals live together
  • They are benefited by each other.
  • EXAMPLE-
  • Birds stay near buffalo and eat insects. The buffalo are helped because the birds remove insects.
people and the ecosystem
People and the Ecosystem
  • Humans can have a major impact on ecosystems.
  • Population- the amount of people
          • *Rural versus Urban*
  • Pollution- harmful substances are added to the Earth’s water, air and land.

Smoke and Smog

Oil Spills

Acid Rain

how can we help
How Can We Help?
  • Don’t waste electricity
  • Reduce Waste
  • Recycle Trash
  • Reuse Products
  • Name 1 thing you can do to help: