U N I T 14 - 16 E X A M R E V I E W
7 T H G R A D E
HOW DO MANY BIRDS REACT
TO SEASONAL CHANGES IN
TEMPERATURE?
They Migrate
HOW DO FARMERS USE
SELECTIVE BREEDING TO
INCREASE EGG
PRODUCTION?
They only mate chickens that produce a greater amount of eggs
Coloration (Camouflage)
To hide from predators
THE GALAPAGOS ISLANDS
HAVE MOCKINGBIRDS WITH
VARYING BEAKS.
WHY DO THEIR BEAKS
DIFFER
They have adaptations to the food available in the bird’s habitat.
Internal - Structural
They filter out the oxygen that is dissolved in the water.
LIGHT PEPPERED MOTHS WERE
MORE ABUNDANT IN THE 1800’S.
AFTER THE INDUSTRIAL
REVOLUTION THE BLACK MOTH’S
HAD AN ADVANTAGE.
WHAT WAS A RESULT OF THIS
ENVIRONMENTAL CHANGE?
Dark colored moths lived longer to reproduce , making more dark colored moths
PENGUINS CAN NOT FLY AND
HAVE SOLID BONES. THIS
MAKES THEM DIFFERENT FROM
OTHER BIRDS.
Allows them to dive into water.
Hollow bones hold air and would cause penguins to float.
It brings more oxygen to the muscles
IF WHALES LOSE THEIR ABILITY TO CALL, THEY
CAN NOT COMMUNICATE WITH OTHER WHALES
MAKING IT LESS LIKELY TO FIND A MATE,
THEREFORE THERE ARE FEW WHALES THAT
CANNOT MAKE A SOUND.
WHAT IS THIS AN EXAMPLE OF?
They can’t find a mate: Natural Selection
WHICH OF THESE LEAVES WOULD BE
CONSIDERED COMPOUND LEAVES?
1,2,3,4
WHICH OF THESE LEAVES ARE NOT DIRECTLY
OPPOSITE EACH OTHER ON THE STEM?
6,7
HERE IS THE ARCTIC FOX IN THE SUMMER
AND IN THE WINTER. WHY IS THE
ADAPTATION TO CHANGE COLOR DEPENDING
ON THE SEASON IMPORTANT ?
To better blend in with the surroundings.
Hunt for food and defense against predators.
WHICH SEED WILL PROVIDE THE LARGEST
SOURCE OF ENERGY AND WHY?
THE TOP ROW OF SEEDS, THE MIDDLE, OR
THE BOTTOM?
The top because they have more matter to provide more energy
A SPINY CACTUS IS GROWING SUCCESSFULLY IN AN
ARIZONA DESERT. THIS PLANT HAS MADE
ADAPTATIONS TO ITS NATIVE ENVIRONMENT THAT
MAKES IT SUCCESSFUL IN HARSH CONDITIONS.
WHAT ARE THREE ADAPTATIONS TO THIS CACTUS?
Waxy leaves
Sharp spines
Shallow roots
BE SURE YOU KNOW HOW TO
• Use a Dichotomous key to determine the name of a plant and an animal.
• Recognize the benefits of certain adaptations.