What is
Ecology?
Chapter 2
Goal 5
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Goals and Objectives
Goal 5:
TSWBAT develop an understanding
of the ecological relationships
among organisms.
Objectives: TSWBAT:
5.01
Investigate and analyze the
interrelationships among organisms,
populations, communities, and
ecosystems.
5.02
Analyze the flow of energy and the
cycling of matter in the ecosystem
I. What is Ecology??
A. The study of interactions
that take place between
organisms and their
environment.
B. It explains how living
organisms affect each other
and the world they live in.
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II. Habitat & Niche
A. Habitat is the
place a plant
or animal lives
B. Niche is the
role of an
organism in an
ecosystem
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III.
The Nonliving
Environment
A.
Abiotic factors- the
nonliving parts of an
organism’s environment.
1. Examples include
currents, soil,
light, temperature,
air and moisture.
B.
Abiotic factors affect
an organism’s life.
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IV.
The Living
Environment
A. Biotic factors- all the
living organisms that
inhabit an area.
1.
All organisms depend
on others directly or
indirectly for food,
shelter, reproduction,
or protection.
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Abiotic or Biotic?
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Abiotic or Biotic?
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Abiotic or Biotic?
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Abiotic or Biotic?
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V.
Levels of
Organization
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A.What are the Simplest Levels?
1.
2.
3.
4.
5.
6.
7.
Atom
Molecule
Organelle
Cell
Tissue
Organ
System
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B. Levels of Organization
1.
Ecologists have organized the
interactions an organism takes
part in into different levels
according to complexity.
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VI. 1st Level of Organization
A. Organism:
An individual
living thing that
is made of
cells, uses
energy,
reproduces,
responds,
grows, and
develops
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VII.
2nd Level of Organization
A.Population:
A group of
organisms, all
of the same
species, which
interbreed
and live in the
same place at
the same
time.
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VIII. 3rd Level of Organization
A. Community:
All the
populations of
different
species that
live in the
same place at
the same
time.
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IX.4th Level of Organization
A.Ecosystem:
Populations of plants
and animals that
interact with each
other in a given area
with the abiotic
components of that
area. (terrestrial
or aquatic)
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X. 5th Level of Organization
A.Biosphere:
1. The portion
of Earth
that
supports
life.
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2. Life is found in air,
on land, and in fresh
and salt water.
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What level of organization?
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What level of Organization?
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What level of Organization?
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