Download What are adaptations?

A characteristic that helps an organism
survive in its environment
Living things have bodies that are adapted for the places they
live and the things they do.
» Structural adaptation
» Behavioral adaptation
˃ Teeth shape
˃ Migration
˃ Beak/bill shape
˃ Hibernation
˃ Body coverings (fur, scales,
spines, coloration)
˃ Movement (long legs for
running, wings for flying,
fins for swimming)
˃ Hiding
˃ Social or isolated
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physical features of an
organism to help it survive in
its environment. The way the
body is made or works
» Grinding teeth in herbivores
» Webbed feet for swimming
» Needle leaves in cactus
» Gills in fish
» Hollow bones in birds
» A bulb in plants
How do these structural adaptations help an
organism survive?
When we learned about the human skeletal system, we
learned that our bones are responsible for several jobs in
our bodies:
» Provide Shape and Support
» Protect Organs
» Making blood cells
» Storage
» Birds have hollow bones… why?
Hard on the outside with air cavities
inside
Lighter weight
Hollow bones look like other bones
from the outside, with the usual hard
exterior you'd expect a bone to
have. But instead of being filled with
marrow as your bones are, a hollow
bone has an air cavity inside.
The hollow part of a bird bone isn't wasted
space. In some bones, the hollow cavities
contain extensions of the air sacs from the lungs.
These air sacs help the bird to get the oxygen it
needs to fly quickly and easily.
 Penguins cannot fly.
 Do you think their bones are hollow?
 Why or why not?
Penguins bodies are adapted for
movement through water.
They spend up to 75% of their lives in
the sea.
Having solid dense bones helps
penguins stay underwater and resist
floating to the top.
» Can you find the animals in the pictures?
https://www.youtube.com/watch?v=0uE2XMXZUQY
https://www.youtube.com/watch?v=XpdoDBYuHIA
» Mimicry allows one animal to look, sound, or act like
another animal to fool predators into thinking it is
poisonous or dangerous.
milk snake
Venomous
coral snake
» Many animals’ only line of defense is their
colors.
» The warning colors of red, yellow, orange,
and bright blue warn others that these
animals might be dangerous and should
be avoided!
» Migration
» Hibernation
» Dormancy in plants
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» Behavioral adaptations include
activities that help an organism
survive.
» Behavior adaptations can be
learned or instinctive.
» Living together in groups
» Solitary
» Social behavior is all about
how an animal interacts
with members of its own
species. For instance, does
it live in a colony or on its
own, does it fight to be top
of the pecking order, or
does it try to keep strangers
away from its home?
» Bird calls
» Frog croaking
» Cricket chirping
a group of animals
moving from one region
to another and then
back again.
Animals migrate for different
reasons.
»
»
»
»
»
better climate
better food
safe place to live
safe place to raise young
go back to the place they were born.
This is deep sleep in which animal’s body temp drops, body
activity (metabolism) are slowed way down to conserve energy.
E.g. bats, squirrels & bears.