the study of the ecosystem chapter 7: ecology. what is an ecosystem? big idea ?
TRANSCRIPT
the study of the ecosystem
Chapter 7: Ecology
What is an Ecosystem?
Big
Id
ea ?
Focus Identify the roles: Consumers Herbivore Carnivore Omnivore Producers Decomposers
Illustrate: Food Chains Food Webs
Georgia Performance Standards S4L1abcd: Students will describe the roles of organisms and the flow of energy within an ecosystem.
S4CS1abcd: Students will be aware of the importance of curiosity, honesty, openness, and skepticism in science and will exhibit these traits in their own efforts to understand how the world works.
S4CS3.1abcd: Students will use tools and instruments for observing, measuring, and manipulating objects in scientific activities utilizing safe laboratory procedures.
S4CS4a: Students will use ideas of system, model, change, and scale in exploring scientific and technological matters.
S4CS5abc: Students will communicate scientific ideas and activities clearly.
S4CS6ab: Students will question scientific claims and arguments effectively.
Vocabulary: Lesson 1
Wh
at
Is a
n E
cosyste
m?
Environment
all of the living and nonliving
things surrounding an organism.
Population
all the individuals of the same kind living in
the same ecosystem.
EcosystemEco –from the Greek word that
means “house”
a community and its
physical environment
together.
Community
all the populations of
organisms living
together in an environment
Vocabulary: Lesson 2
Wh
at
are
th
e R
ole
s o
f P
rod
ucers
, C
on
su
mers
, an
d D
ecom
posers
?
Producera living thing, such as a plant, that can make its own food.
Examples: Moss & Oak tree
Consumera living thing that can’t make its own food and must eat other living things.Examples: Lion &
Bear
Decomposera living thing that
feeds on the wastes of plants and
animals.Examples: Bacteria
& Fungi
Herbivore
An animal that eats only plants, or
producers
Examples: Rabbits & Horses
Carnivore
An animal that eats only other animals
Examples: Lions & Jaguars
Omnivore
A living thing that eats both plants and
other animalsExamples: Bears &
Hyenas
Vocabulary: Lesson 3
How
Does E
nerg
y F
low
Th
rou
gh
an
Ecosyste
m?
Habitat
an environment that meets
the needs of an organism
Predator
a consumer that eats
prey
Niche
the role of an organism in its habitat
Prey
consumers that are eaten by predators
Food Chaina series of organisms that
depend on one another for food
Food Weba group of food chains that
overlap
Energy Pyramid
a diagram showing how much energy is passed
from one organism to the next in a food chain
****************the further along the food
chain you go, the less food (and hence energy)
remains available.
Vocabulary: Lesson 4
Wh
at
Facto
rs I
nfl
uen
ce
Ecosyste
ms?
Bioticdescribes a living part of an
ecosystem
Abioticdescribes a nonliving part
of an ecosystem
Focus
Identify ways Adaptation can help organisms survive Predict how changes in an environment will effect a community Predict the effects on a population if there are too many or a scarcity of some animals or plants Identify factors leading to Extinction
Standards
S4L2ab: Students will identify factors that affect the survival or extinction of organisms such as adaptation, variation of behaviors (hibernation) and external features (camouflage and protection). S4CS1abcd: Students will be aware of the importance of curiosity, honesty, openness, and skepticism in science and will exhibit these traits in their own efforts to understand how the world works. S4CS3.1abcd: Students will use tools and instruments for observing, measuring, and manipulating objects in scientific activities utilizing safe laboratory procedures. S4CS4a: Students will use ideas of system, model, change, and scale in exploring scientific and technological matters. S4CS5abc: Students will communicate scientific ideas and activities clearly. S4CS6ab: Students will question scientific claims and arguments effectively.
Vocabulary: Lesson 1
Wh
at
are
ph
ysic
al
ad
ap
tati
on
s?
Will they survive? Are their basic needs being met?
Basic needsfood, water, air, and shelter that an organism needs
to survive
Adaptationa body part or behavior that helps an organism
survive
Camouflagea color or shape that helps
an animal hide
Instincta behavior
that an animal
begins life with and
that helps it meet its needs
Extinctionthe death of
all the members of a certain group of organismsMegalodon – prehistoric
shark
Hibernation
a dormant, inactive state in which
normal body activities
slow
Migrationthe
movement of animals from one region to another and
back