Transcript Ecosystems Notes #2a

Lesson #2:
Habitats Provide Basic
Needs for Organisms
Pages 15-19
 2 Areas of
Focus
 A) Survival Needs
 B) Limiting Factors
of the environment
A) Survival Needs
1. Survival Needs for
plants and animals
include:





____________
Food
Air
___________
___________
2. a) Habitat: is the
____________
space where a
species lives.
b) The Habitat must
meet the
________________
needs of the
species
c) Since animals have
different needs,
animals can only live
in certain places in
the world (biomes).
Example: A polar bear
can’t live in a desert
B) Limiting Factors
 Any part of the
 5 Non-Living limiting
________________
factors:
environment that
 _________________
determines whether
___________________
(rocks, mountains)
or not an organism
 Sunlight
will be able to survive
in an area is called a
 Water
limiting factor.
 _________________
 _________________
B) Limiting Factors
i) Physical Barriers:
Includes anything
that ___________ an
animal’s way from
getting to a certain
ecosystem.
This includes rivers,
ocean, mountains
B) Limiting Factors
ii) Sunlight
Animals need a certain amount of
sunlight in order to survive. Depending
on how their ______________ is made
up (ex. Fur) determines how much sun
they need.
B) Limiting Factors
iii) Water: all organisms need water
however some need __________ water
while others needs _____________
water.
iv) Temperature: Living things can only live
in places if the temperature___________
_______________. They won’t survive if it
is too hot or cold.
B) Limiting Factors
v) Soil: In nature, soil gets its
_________________ from decomposers
breaking down waste.
****Soil that has a lot of nutrients can ____
______________________, making it a
better place for animals to live.
TO SUMMARIZE…
 Plants and animals SURVIVAL NEEDS
are:
 LIMITING FACTORS of the non-living
environment are: