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All reptiles breathe using lungs.

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Where they live?
Most fish live in water but some fish like mudskippers live in water and on land. Mudskippers are amphibians fish.

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Where do Amphibians live?
Most amphibians live in both land and water.

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How they move?
"Fish swim by flexing their bodies and tail back and forth.  Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side.  This motion moves them forward through the water.  Fish use their back fin, called the caudal fin, to help push them through the water."

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How do insects breathe?
Insects breathe through spiracles (small holes in their abdomen). Air enters the spiracle allowing oxygen to travel along a network of tiny tubes called trachaea to reach the cells in the insect’s body.

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Their body outer covering ?

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Their body outer covering?
Reptiles body outer covering is covered with scales which along with many other characteristics, distinguish reptiles from animals of other classes.

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Zachary Chen Hanyu

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How do they reproduce?

Amphibians do not produce amniotic eggs, so they must reproduce in water.Amphibian larvae go through metamorphosis to change into the adult form.

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My favourite Amphibian:

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Lizards move in interesting ways. Most lizards can run, climb, and cling. A few species can swim. ... Some lizards raise their bodies and run along on their hind legs.

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Interesting characteristics of ponies.
. They are very small.
. Compared to horses, they have very thick manes.
. Ponies are generally considered intelligent and friendly, although sometimes they also are described as stubborn or cunning.

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My favourite reptile :

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Did you know there is such thing as a two headed snake? ( its true! ):)

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See-Us Pets is a video series dedicated to the keeping, care and rescue of your beloved pets. Pets are loved family members and their care and happiness is important to all of us.

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Do they have any special body parts?
They have a pair of feelers and three body parts.
The feelers can help the insects sense the surroundings around them.

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What are the insects' outer covering?                                                      All insects have exoskeleton coverings. For example,bugs have smooth and shiny exoskeleton covering.

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Question: Do amphibians produce milk for their young?

Answer:
No. Amphibians do not have mammary glands to feed their young, only mammals do! ^-^

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Why do amphibians need less oxygen than birds or mammals? How how move? breathe? Most lose their gills and develop lungs. Grass frog) or walk (e. Estonian vertebrates the general characterization of amphibians bio. Wonderful world of amphibians and reptiles new ecopsychology.

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Where they live (on land or in water)
Most reptiles live on land. Although some reptiles live either temporarily or permanently in the water, it is not vital for reproduction and development. Most reptiles live in warmer and drier places like deserts and semi deserts.

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Their body outer covering

Birds body outer covering are feathers.
Their feathers helps to keep them warm and to fly.
Some birds cannot fly , like ostriches and penguins.

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How Do Birds Feathers Help Them Survive?

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Soft, fluffy downy feathers help keep birds warm, contour streamline birds' do not have true teeth, but many species tomia sharp ridges along filled with marrow, helping them to survive in their freezing home range the night temperature will drop 6 f. All birds grow feathers, making them different from all other animals.

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The animals that live on the plains are adapted for fast running, a lot of forest animals for climbing in trees. The toes of the forelimbs of cetaceans have fused to form flat, paddlelike flippers which enable them to swim similarly to fishes. Few species of mammals are able to fly (e.g. bat). picture of baby pony

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Any other interesting characteristics?
All insects have three pairs of legs and a pair feelers. They reproduce by laying eggs. They also have compound eyes .

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10 Interesting Insects || Insects for Kids || Bugs for Kids

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There are SO many kinds of Interesting Insects! Sometimes we call them BUGS. Insects all have 6 legs, 3 body parts, and an exoskeleton. They often have antennae and wings. But beyond that, they come in so many varieties! In this video, we talk about some of the insects you might find in your backyard.

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This caterpillar looks like he is wearing a costume!

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How do they move?
A flying insect moves its wings by moving the muscles inside its body.

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How they reproduce?
The life cycle of all insects, including honey bees, begins with eggs. During the winter season, a queen forms a new colony by laying eggs within each cell inside a honeycomb. Fertilized eggs will hatch into female worker bees, while unfertilized eggs will become drones or honey bee males.

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Did you know that a frog lays eggs on a leaf？Well, watch this video to find out.

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Escape Hatch: The Tough Choices of Treefrog Embryos

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Boston University biologist Karen Warkentin has found that red-eyed treefrog embryos are capable of assessing a variety of threats in surprising ways, and if danger presents itself, they can choose to hatch days earlier than they typically would.

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Where they live?
Reptiles live in places that has water but they also can live on dry land.

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How do mammals breath? Paired lungs are the respiratory organs of mammals. All mammals, even the ones living in the water, breathe air oxygen. The frequency of breathing differs: larger mammals breathe less than smaller animals.  All life respires, or breathes. Respiration in mammals is similar to respiration in other air breathing animals. Respiration is necessary to extract oxygen from the air, which is use by cells.   Whales cannot breathe underwater because they are mammals and not fish. This means that their breathing organs are lungs, rather than gills. So, like humans,whales need to come to the surface to take a deep breath of fresh air and when they are underwater they hold their breath. Fish also need oxygen to breathe .

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Examples of Fish

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How do they breath? Fish use there gills to help breath under water.

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Fish can lay eggs in water

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Birds are the only animals with feathers.They reproduce by laying eggs. They have a beak,a pair of legs and wings
Fun Fact:Do you know that ostrich is a type of bird and they lay the largest eggs.

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How they move?

Amphibians are cold blooded animals, they moved in different ways (e.g hopping or walking or swimming)

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A kitten, also known as a kitty cat, is a juvenile cat. After being born, kittens are totally dependent on their mothers for survival and they do not normally open their eyes until after seven to ten days. After about two weeks, kittens quickly develop and begin to explore the world outside the nest. After a further three to four weeks, they begin to eat solid food and grow adult teeth. Domestic kittens are highly social animals and enjoy human companionship.

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Where they live?
Birds live in nests which are either located on the ground or in bushes or trees.

Some birds such as swans, ducks, etc....can swim in water, however all birds live on land.

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How they reproduce?
They lay eggs. All the birds in the world lay eggs unlike us.

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How do birds breathe?
Birds take in air and extract oxygen from it to supply body tissues. When a bird inhales, air actually leaves its lungs, fresh air enters the lungs.
Air enters through the back of the mouth and goes into the larynx and trachea. It is channeled into the lungs, air sacs and hollow bones. Gases from air sacs are sent forward through the lungs and more air sacs and finally expelled from the body.

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What special body parts they have?
Frogs skin is special because they breathe through their skin.

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This is a short video of what I meant in front of how to a marine mammals breath.

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How Do Marine Mammals Hold Their Breath For So Long?

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how they

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Where do insects live?
Insects live all over the world and in a variety of habitats, but they prefer warm climates.

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BioKIDS - Kids’ Inquiry of Diverse Species, Insecta, insects: INFORMATION

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BioKIDS - Kids’ Inquiry of Diverse Species

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http://i.dailymail.co.uk/i/gif/2014/10/29/0216861fcfa41624e60edbe5c924e34041f055e1.gif

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Do you know, that there are about four thousand types of mammals? Mammals are very diverse.  There are mammals that live above about ground, mammals that can fly, mammals that live below ground and mammals that live under water.  All mammals have hair, even dolphins and whales that live in the ocean.  Most mammals are helpless when they are babies, and their body temperature remains about the same their entire lives.  Bats are the only mammals that can fly.  All mammals except ant eaters have teeth.

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How animal breathe?
Mammals breath through their lungs like us but the frequency of breathing differs: larger mammals breaths less than smaller animals. Example, a whale can remain under water for two hours without breathing, a mouse breathes more than 150 times a minute.The picture show how oxygen and carbon dioxide are transported.http://i.dailymail.co.uk/i/gif/2014/10/29/0216861fcfa41624e60edbe5c924e34041f055e1.gif

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How do reptiles breathe?

All reptiles breathe using their lungs. However unlike humans, they breathe through skin as it is permeable. that means that their skin allows gases to pass through for gaseous exchange to take place.

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I think it is the invertebrates.
https://www.thoughtco.com/the-six-basic-animal-groups-4096604

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invertebrates they are snails and worms:D

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This are some groups which we have not study yet. I will only name one group which is the arachdnids.  There are approximately 38,000 known species of spiders.

Spiders eat more insects than birds and bats combined.Spiders have blue blood. In humans, oxygen is bound to hemoglobin, a molecule that contains iron and gives blood its red color. In spiders, oxygen is bound to hemocyanin, a molecule that contains copper rather than iron.https://youtu.be/kQLxcitu5qY

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Goats pop on wood. Goats also have two tummies. When they sleep,they will eat grass. Their food will alwast come up after they chew it. Goats pop is quit small.T

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Birds use different techniques to gain enough momentum to force air to move rapidly over their wings. Some, like the peregrine falcon and the puffin, jump from cliffs or other high objects and use their fall to drive air over their wings and provide themselves with enough lift to fly. Others, like the hummingbird, can beat their wings so rapidly that they drive air over their wings quickly enough to achieve the required lift.

Bird's bodies are also specially designed to accommodate flight. Their bones are hollow and therefore extremely light, their lungs only fill up with a limited amount of air at one time and they do not have teeth or a bladder, all of which make birds extremely light. Birds also take advantage of the different air currents in order to provide themselves with lift. Rapidly rising plumes of hot air called thermals, act like an elevator and lift birds high into the air, while updrafts, rapidly rising air that is forced upward by an obstruction, can also be used in the same manner.
Learn more about Pets

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Birds use different techniques to gain enough momentum to force air to move rapidly over their wings. Some, like the peregrine falcon and the puffin, jump from cliffs or other high objects and use their fall to drive air over their wings and provide themselves with enough lift to fly.