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Ecology - Sec. 1.1

Ecosystems support life.
by

Michael Goorsky

on 19 November 2013

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Transcript of Ecology - Sec. 1.1

Learning Goal:
Describe the interactions of biotic & abiotic factors in an ecosystem
.

Ecology Sec. 1.1 Notes
1. Which series is written in the correct order?
a. tissues, cells, organs, molecules
b. cells, tissues, organs, organ systems
c. organs, cells, organ systems, tissues
2. Imagine you're walking down the street and you see a tiger heading your way. Immediately, your body gets ready to react and run away. Name a change that will happen in one of your organ systems that could help you.
Questions of the Day
Definitions
1. It surrounds all living things.
2. All living organisms need it.
3. It gives Earth most of its energy.
Terms
a. the Sun c. the ocean
b. energy d. environment
Pop Quiz
Ecology is the scientific study of how organisms
interact
with their
environment
and all of the other things around them.

Ecosystem
describes a particular environment.
includes
living
and
nonliving
things.
Can be small like a pond, or large like a desert.

Biotic & abiotic factors
Living things depend
on the environment
Ex: bacteria, archae, protists, fungi,
plants
, and
animals
(organisms in all 6 kingdoms)
We mostly talk about plants and animals.
Biotic factors: the living things in an ecosystem
Abiotic
factors are all
non-living

physical
and chemical parts of an ecosystem.
Temperature,
light
, soil, and
water
.
Many abiotic factors
affect ecosystems
LSO
Think of an ecosystem you know about or used to live in. Draw a scene with the plants & animals in that ecosystem.
LSO
Think of an ecosystem you know about or used to live in. Draw a scene with the plants & animals in that ecosystem.
Label your pictures with biotic labels in green, abiotic labels in red.
Plants
Ex: can be food for other organisms, release oxygen, and keeps
soil
in place.

Animals
Ex: Can erode or alter the
landscape
through everyday life processes.
How
biotic
factors affect other biotic and abiotic factors.
Temperature
affects the types of plants that grow in a land ecosystem
affects animals that can survive in certain temperatures
Light
energy from sunlight supports all life on Earth
___________________ use light to make their own food
Soil
a mixture of small rock and mineral particles
affects land ecosystems because it is the site of decomposition
soil minerals affect plant growth
Water
all living things need water to carry out life processes
affects how much life can be supported in an ecosysyem
Many abiotic factors affect ecosystems.

How biotic factors affect other biotic and abiotic factors in an environment:

oxygen
carbon dioxide
hydrogen
nitrogen
light
temperature
http://www.npr.org/2013/04/17/177566615/increased-carbon-dioxide-levels-damage-coral-reefs?sc=17&f=3
Draw the picture here!!!!!
Biotic Factors interact with an ecosystem.

Living things depend upon an ecosystem for food, air, water, and other things needed for survival.
Full transcript