Environmental Science: Section 1-2 Living Things Need Energy - PowerPoint PPT Presentation

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Environmental Science: Section 1-2 Living Things Need Energy

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Environmental Science: Section 1-2 Living Things Need Energy 1 To survive, living things need energy 2 What three groups can animals be divided into based on how they ... – PowerPoint PPT presentation

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Title: Environmental Science: Section 1-2 Living Things Need Energy


1
Environmental Science Section 1-2Living Things
Need Energy
2
1
  • To survive, living things need
  • energy

3
2
  • What three groups can animals be divided into
    based on how they get energy?
  • producers
  • consumers
  • decomposers

4
3
  • Organisms that use sunlight directly to make food
    are called __________.
  • producers

5
4
  • Producers use a process called ________ to make
    food.
  • photosynthesis

6
5
  • Herbivores, carnivores, and omnivores that eat
    other organisms are known as _________.
  • consumers

7
6
  • A consumer that eats only plants is a(n)
    _________.
  • herbivore

8
7
  • A consumer that eats only animals is a(n)
    _________.
  • carnivore

9
8
  • A consumer that eats both plants and animals is
    a(n) __________.
  • omnivore

10
9
  • An example of a herbivore is a(n) ______.
  • grasshopper
  • prairie dog
  • bison
  • etc.

11
10
  • An example of an omnivore is a(n) _____.
  • grasshopper mouse

12
YesThere is such a thing as a grasshopper mouse
13
11
  • Omnivores that eat dead plants and animals are
    called __________.
  • scavengers

14
12
  • Organisms that break down dead organisms to get
    energy are called _______.
  • decomposers

15
13
  • List two decomposers.
  • fungi
  • bacteria
  • other organisms that break down food

16
14
  • A simple diagram that shows how energy in food
    flows from one organism to another is a(n)
    ___________.
  • food chain.

17
15
  • A food chain does not show energy connections in
    nature as accurately as a food ___________ does.
  • web

18
16
  • In food webs and food chains, does the arrow
    point toward the plant or animal doing the eating
    or the one that is eaten?
  • toward the one doing the eating

19
17
  • List the two main food webs on Earth.
  • land
  • aquatic

20
18
  • Why isnt all of the energy that grass gets from
    sunlight passed on to the prairie dogs that eat
    the grass?
  • The grass uses most of the energy for its own
    life processes and only stores some of the
    energy.

21
19
  • The diagram that shows an ecosystems loss of
    energy at each level of the food chain is known
    as ______________.
  • energy pyramid

22
20
  • When gray wolves were wiped out as the wilderness
    was settled, what happened to the grass and elk
    in some areas?
  • There were a lot elk, since the wolves did not
    eat them, and they overgrazed the grass, so it
    was almost gone.

23
The End!!!
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