ADAPTATION IN ANIMALS L O ANIMALS ARE ADAPTED

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ADAPTATION IN ANIMALS L. O. -ANIMALS ARE ADAPTED FOR SURVIVAL IN THEIR PARTICULAR HABITAT

ADAPTATION IN ANIMALS L. O. -ANIMALS ARE ADAPTED FOR SURVIVAL IN THEIR PARTICULAR HABITAT -THERE IS A RELATIONSHIP BETWEEN BODY SIZE AND SURFACE AREA: VOLUME RATIO -- HAIR AND BODY FAT CAN PROVIDE INSULATION

All animals are seeking HOMEOSTASIS Depending on their environment, they have different ADAPTATIONS

All animals are seeking HOMEOSTASIS Depending on their environment, they have different ADAPTATIONS which help them to maintain homeostasis

ANIMALS IN COLD CLIMATES Have to keep themselves warm! Ex: polar bears You lose

ANIMALS IN COLD CLIMATES Have to keep themselves warm! Ex: polar bears You lose body heat through your skin - The amount of heat you lose is closely linked to your Surface area: Volume ratio

Controlling body temperature Volume : Surface area ratio = 1: 6 For every 1

Controlling body temperature Volume : Surface area ratio = 1: 6 For every 1 unit of heat made, heat is lost out of 6 sides Volume : Surface area ratio = 1: 5 For every 1 unit of heat made, heat is lost out of 5 sides

Arctic mammals are relatively large This keeps their surface area: volume ratio as

Arctic mammals are relatively large This keeps their surface area: volume ratio as small as possible This helps them hold on to their body heat

INSULATION Many arctic animals use blubber as insulation Blubber is a thick layer of

INSULATION Many arctic animals use blubber as insulation Blubber is a thick layer of fat that builds up under the skin

FUR Remember: n n piloerection hairs trap a layer of air next to the

FUR Remember: n n piloerection hairs trap a layer of air next to the skin which is then warmed by the body heat The air becomes an insulating layer.

CAMOUFLAGE changing coat colour WINTER SUMMER

CAMOUFLAGE changing coat colour WINTER SUMMER

OTHER KINDS OF CAMOUFLAGE http: //uk. youtube. com/watch? v=ck. P 8 ms. Ig. MYE

OTHER KINDS OF CAMOUFLAGE http: //uk. youtube. com/watch? v=ck. P 8 ms. Ig. MYE http: //uk. youtube. com/watch? v=2 x-8 v 1 mxp. R 0

SURVIVING IN DRY CLIMATES THE DESERT! BIGGEST CHALLENGES: - lack of water - body

SURVIVING IN DRY CLIMATES THE DESERT! BIGGEST CHALLENGES: - lack of water - body temp. getting too high

**the LARGER the animal, the SMALLER the surface area : volume ratio Animals

**the LARGER the animal, the SMALLER the surface area : volume ratio Animals often have INCREASED surface area in HOT climates, and DECREASED surface areas in COLD climates big in the arctic and small in the Sahara

The elephant conundrum Elephants are BIG Small S. A: Volume, so they don’t lose

The elephant conundrum Elephants are BIG Small S. A: Volume, so they don’t lose a lot of heat? WHAT ARE THEIR ADAPTATIONS TO FIX THIS PROBLEM? http: //www. youtube. com/ watch? v=ik. Db. PX 9 HJok& feature=channel

dromedaries http: //www. bbc. co. uk/n ature/life/Dromedary#p 005 lnxb

dromedaries http: //www. bbc. co. uk/n ature/life/Dromedary#p 005 lnxb

Many desert animals get the water they need from the food they eat

Many desert animals get the water they need from the food they eat AEROBIC RESPIRATION Glucose + oxygen carbon dioxide + WATER

Mammals keep their body temperatures the same. - when the environment gets warmer,

Mammals keep their body temperatures the same. - when the environment gets warmer, they have to find ways to cool down! These animals are usually more active a night, when its cooler and sleep in the shade during the day

ADAPTATIONS Living in HOT places Living in COLD places

ADAPTATIONS Living in HOT places Living in COLD places

Jeopardy Animals 1 Animals 2 Animals 3 AnimalsJeopardy Animals 1 Animals 2 Animals 3 Animals
Adaptation Adaptation Adaptation is a special characteristic thatAdaptation Adaptation Adaptation is a special characteristic that
Adaptation to environment 1 Adaptation to environment AdaptationAdaptation to environment 1 Adaptation to environment Adaptation
Plant Adaptation Adaptation Living things are adapted toPlant Adaptation Adaptation Living things are adapted to
Adaptation How have these animals these adapted toAdaptation How have these animals these adapted to
Reproduction of animals Why do animals reproduce AnimalsReproduction of animals Why do animals reproduce Animals
COUNTING ANIMALS small animals large animals birds CreatedCOUNTING ANIMALS small animals large animals birds Created
A for animals rm animals Wild animals SeaA for animals rm animals Wild animals Sea
Animals Exotic animals Animals Exotick zvata Z aAnimals Exotic animals Animals Exotick zvata Z a
ANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALSANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALS
Animals animals we love animals Tigers bears lionsAnimals animals we love animals Tigers bears lions
Nocturnal Animals Nocturnal animals are animals that preferNocturnal Animals Nocturnal animals are animals that prefer
ANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALSANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALS
animals rare animals Rare animals may be movedanimals rare animals Rare animals may be moved
What Animals Need Animals Kindergarten Hook Animals needWhat Animals Need Animals Kindergarten Hook Animals need
ANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALSANIMAL PLANET WILD ANIMALS DOMESTIC ANIMALS ZOO ANIMALS