Unit 2: We protect animals.
Vocabulary:
1. Herbivores 8. Sponges 15. Gastropods
2. Carnivores 9. Jellyfish 16. Cephalopods
3. Omnivores 10. Worms
4. Gills 11. Molluscs
5. Male and female 12. Arthropods
6. Oviparous 13. Echinoderms
7. Viviparous 14. Bivalves
1. What are the life processes of animals ?
Nutrition
Through nutrition, animals obtain the substances
and the energy they need to live. They need to eat
other living things.
Respiration
Besides food, animals eed oxygen. Oxygen is a gas found in air and water. Animals take in oxygen either throug lungs or through gills. This process is called respiration,
Sensitivity
Animals receive information about what is
happening around them through their sense
organs. The brain receives this information,
interprets it and gives an appropriate response.
This process is called sensitivity
Reproduction
Reproduction is the process by which animals
produce offspring similar to themselves
2. What type of animals are there?
vertebrates
They have a hard internal skeleton with a backbone.
Their body is divided into three parts: head, trunk and limbs.
There are five groups of vertebrates:
Invertebrates
Invertebrates do not have an internal skeleton with
a backbone
1. Sponges are different
shapes. They live
in the sea. They
cannot move about.
They are fixed
to the seabed.
2. Jellyfish float
in the sea.
They look like
an umbrella.
They can sting
with their tentacles.
3. Worms have
a long, soft body
and no legs.
There are different types of worms
4. Molluscs have a
soft body. Most of
them, like snails,
have a hard shell
for protection.
5. Arthropods have
a hard outer shell.
Insects are the most
abundant group
of arthropods.
6. Echinoderms,
like starfish,
have hard,
spiny skin.
Vertebrate:
https://wordwall.net/es/resource/5158522/vertebrates
Invertebrate:
https://wordwall.net/es/resource/2609387/invertebrates
https://wordwall.net/es/resource/38289417/invertebrates
Vertebrate vs invertebrate:
https://wordwall.net/resource/39196/science/vertebrate-or-invertebrate
3 What are mollusc like?
All molluscs have a soft body.
The main groups of molluscs:
https://www.liveworksheets.com/worksheets/en/Natural_Science/Molluscs/molluscs_qe5478dd
4. What are insects?
Insectsc are the largest group of animals in the world
* How do insects reproduce?
Most insects lay eggs. A larva hatches from an egg. The larva changes into a pupa. The adult insect emerges from the pupa. This process of change is called metamorphosis.
Insect groups
Arthropods:
Insects belong to the invertebrate group called arthropods, the most numerous group of animals.
- All arthropods havea hard case on the outside.
- Arthropods have jointed legs
