ChapA2.1

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Information about ChapA2.1

Published on September 29, 2007

Author: stviator4b

Source: slideshare.net

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The Basic Needs of Animals

Animal Growth and Adaptations How Animals Meet Their Needs

Where Animals Meet Their Needs all animals have some basic needs in common food, water, and shelter environment: everything that surrounds and affects an animal, including living and nonliving things all the basic needs of an animal can be met in its environment

all animals have some basic needs in common

food, water, and shelter

environment: everything that surrounds and affects an animal, including living and nonliving things

all the basic needs of an animal can be met in its environment

The Need for the Right Climate Climate: the average temperature and rainfall of an area over many years desert climate: very little rainfall and dry all year Vultures, foxes, snakes, tortoises, kangaroo rats, and other small animals live in the desert Vultures live in cacti, bushes, or small trees Kangaroo rats and foxes live in burrows in the ground

Climate: the average temperature and rainfall of an area over many years

desert climate: very little rainfall and dry all year

Vultures, foxes, snakes, tortoises, kangaroo rats, and other small animals live in the desert

Vultures live in cacti, bushes, or small trees

Kangaroo rats and foxes live in burrows in the ground

Tortoises and kangaroo rats feed on leaves, fruit, and seeds of desert plants Vultures, snakes, and foxes feed on other animals desert animals must get water from the food they eat Click here for more info on desert animals!

Tortoises and kangaroo rats feed on leaves, fruit, and seeds of desert plants

Vultures, snakes, and foxes feed on other animals

desert animals must get water from the food they eat

The Need for Oxygen Oxygen: one of the many gases in the air land animals get oxygen by breathing air into their lungs ocean mammals come to the water’s surface to breathe air into their lungs

Oxygen: one of the many gases in the air

land animals get oxygen by breathing air into their lungs

ocean mammals come to the water’s surface to breathe air into their lungs

fish get oxygen from water fish and other water animals have gills as water passes through the gills water passes into their blood

fish get oxygen from water

fish and other water animals have gills

as water passes through the gills water passes into their blood

The Need for Food animals need energy to live and grow animals get energy from the food they eat different animals eat different food zebras eat grass rhinos eat low shrubs giraffes eat leaves from tall trees These are plant eaters

animals need energy to live and grow

animals get energy from the food they eat

different animals eat different food

zebras eat grass

rhinos eat low shrubs

giraffes eat leaves from tall trees

These are plant eaters

some animals are meat eaters lions, wild dogs, and leopards some animals eat both plants and meat Compare

some animals are meat eaters

lions, wild dogs, and leopards

some animals eat both plants and meat

The Need For Shelter most animals need shelter in their environment shelter: a place where an animal is protected from other animals or from the weather foxes find/dig shelters gray fox may climb a tree to find a hollow place arctic fox may dig into the snow Desert fox may dig connecting tunnels under the sand

most animals need shelter in their environment

shelter: a place where an animal is protected from other animals or from the weather

foxes find/dig shelters

gray fox may climb a tree to find a hollow place

arctic fox may dig into the snow

Desert fox may dig connecting tunnels under the sand

rocks, logs, leaves can be a shelter almost anything in an environment can be a shelter rock shelter for a snake woodpile shelter for a field mouse rotting log on the forest floor for insects

rocks, logs, leaves can be a shelter

almost anything in an environment can be a shelter

rock shelter for a snake

woodpile shelter for a field mouse

rotting log on the forest floor for insects

Animals and Their Young all animals need young without young all of a species would die out young grow, become adults, and produce more young animals grow and develop in different ways

all animals need young

without young all of a species would die out

young grow, become adults, and produce more young

animals grow and develop in different ways

insects like butterflies lay hundreds of eggs eggs hatch into larvae called caterpillars as the caterpillar grows it molts (sheds it’s outer skin) the last time it molts it seals itself in a tough shell (chrysalis) Inside the chrysalis the caterpillar’s body changes an adult butterfly breaks out of the chrysalis the process of change from an egg to an adult butterfly is called metamorphosis almost all insects, invertebrates that live in water, and amphibians go through metamorphosis

insects like butterflies

lay hundreds of eggs

eggs hatch into larvae called caterpillars

as the caterpillar grows it molts (sheds it’s outer skin)

the last time it molts it seals itself in a tough shell (chrysalis)

Inside the chrysalis the caterpillar’s body changes

an adult butterfly breaks out of the chrysalis

the process of change from an egg to an adult butterfly is called metamorphosis

almost all insects, invertebrates that live in water, and amphibians go through metamorphosis

birds, fish, reptiles, and mammals do not go through metamorphosis mammals young are born or hatched have a few young at a time care for their young until they are old enough to live on their own koala’s give birth before young koala’s are fully developed the newborn lives in it’s mother’s pouch and develops for 6 months then it rides on it’s mother’s back for another 6 months

birds, fish, reptiles, and mammals do not go through metamorphosis

mammals

young are born or hatched

have a few young at a time

care for their young until they are old enough to live on their own

koala’s give birth before young koala’s are fully developed

the newborn lives in it’s mother’s pouch and develops for 6 months

then it rides on it’s mother’s back for another 6 months

Summary Animals have basic needs in common they need the right climate, oxygen, food, water, and shelter Animals must reproduce in order to survive

Animals have basic needs in common

they need the right climate, oxygen, food, water, and shelter

Animals must reproduce in order to survive

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