jueves, 20 de enero de 2022

Unit 3. Animals

🐌🐍🐎🐠 Unit 3: Animals 🐇🐄🐧🐞


Nutrition:

Depending on the food they eat, animals are classified into carnivores, herbivores and omnivores.
  • Carnivores: kill other animals and eat them.
  • Herbivores: eat plants and fruit.
  • Omnivores: eat everything.
  • Decomposers: eat dead plants and animals.
  • Scavengers: eat the remains of dead animals.

 

2.) What is sensitivity in animals?

Interaction or sensitivity:
  • Animals react to their environment to survive.
  • Animals get their food and escape from bigger animals.
  • Different animals move in different ways (swim, fly, run).
  • They make sounds to communicate.


 

3.) How do animals reproduce?

Reproduction:
 Animals have babies. Depending on the type of reproduction, animals can be:

  • Oviparous: animals that are born from eggs.

  • Viviparous: animals that are born directly from their mother’s womb.

  • Ovoviviparous: the eggs develope inside the mothers body and hatch inside. The, the mother gives birth to them.

 

4.) Where do animals live?

 A habitat is a place where animals live. They need 5 things: water, food, air, space and shelter.
 

 

5.) What are vertebrate animals like?

VERTEBRATES:
Animals that have an inner skeleton made up of bones. They have a spine. Most vertebrates have a head, a torso, limbs and a tail.


 

6.) How are vertebrates different?

There are five groups of vertebrates:

 Mammals:
  • They have hair or fur
  • They breathe with lungs.
  • They give birth to young live, they feed their babies with milk.
  • They live on land, but some are aquatic. But only one mammal can fly! The bat.



Birds:
  • Birds have a beak and wings for flying. Their bodies are covered with feathers.
  • They breathe with lungs.
  • They lay eggs, they are oviparous. Some birds, such as ducks and penguins live in water.




 Reptiles:
  • Their skin is covered with scales.
  • Reptiles breathe with lungs.
  • They live on land, but some are aquatic.
  • Reptiles are oviparous, they lay eggs.



Fish:
  • Fish have scales and they use fins to swim.
  • All fish are aquatic animals, they breathe with gills.
  • Fish are oviparous, they lay eggs.



Amphibians:
  • Amphibians have moist skin.
  • When they are young they breathe with gills, but when they are adults, they develop lungs.
  • They can live on land or in water.
  • Amphibians are oviparous, they lay their eggs in water.





 

7.) What are invertebrate animals like?

INVERTEBRATES:
Invertebrates do not have a spine. There are many different groups of invertebrates:







8.) Games and activities:



 
Oviparous vs. viviparous: 






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