GRADE 6 QUARTER 2 WEEK5 INVERTEBRATES.ppt

GRADE 6 QUARTER 2 WEEK5 CLASSIFICATION OF ANIMALS: INVERTEBRATES

1. Mammals Fish Bird
Reptile Amphibian

2. Mammals Fish Bird
Reptile Amphibian

3. Mammals Fish Bird
Reptile Amphibian

4. Mammals Fish Bird
Reptile Amphibian

5. Mammals Fish Bird
Reptile Amphibian

6. Mammals Fish Bird
Reptile Amphibian

7. Mammals Fish Bird
Reptile Amphibian

8. Mammals Fish Bird
Reptile Amphibian

9. Mammals Fish Bird
Reptile Amphibian

10. Mammals Fish Bird
Reptile Amphibian

11. THE INVERTEBRATES

13. CLASSIFICATION OF
INVERTEBRATES
1.Arthropods
2.Mollusks
3.Echinoderms
4.Cnidarian
5.Annelids
6.Poriferans

14. 1. ARTHROPODS
•Arthropods have segmented bodies
and tough skeleton with jointed
appendages.
•They make up the largest group in the
Animal Kingdom
•Arthropods are divided into five groups:
Insects, Arachnids, Crustaceans,
Centipedes and Millipedes.

15. ARTHROPODS

16. CHARACTERISTICS OF
ARTHROPODS
•SEGMENTATION
- they have three
main body
regions;
HEAD,
THORAX
ABDOMEN.

17. CHARACTERISTICS OF
ARTHROPODS
•EXOSKELETON
- Arthropods
have hard
exoskeleton
outside their
body.

18. CHARACTERISTICS OF
ARTHROPODS
•JOINTED
APPENDAGES-
these are adapted
for feeding,
sensing, walking
and swimming.

19. CHARACTERISTICS OF
ARTHROPODS
•The mouthparts
include a pair of
appendages
called
MANDIBLE

20. CLASSIFICATION OF
ARTHROPODS

21. CLASSIFICATION OF
ARTHROPODS
1.Insects
2.Arachnids
3.Crustaceans
4.Centipedes
5.Millipedes
6.Mollusks
7. Echinoderms
8. Sponges
9. Cnidarians
10. Platyhelminthes
(Flatworms)
11. Nematodes
(Roundworms
12. Annelids
(Segmented Worms)

22. 1. INSECTS
•Insects have three pairs of legs or
are six-legged arthropods. Their
legs are adapted for crawling,
collecting pollen and jumping.
•Insects are the largest group of
invertebrates.

23. INSECTS
•Insects have
three main
body
sections –
HEAD,
THORAX
and
ABDOMEN

24. INSECTS
•Insects undergo
metamorphosis
or stages of
growth and
development.

25. EXAMPLES OF INSECTS

26. 2. ARACHNIDS
•Arachnids have four pairs of
walking legs.
•Some have spinnerets which they
use to spin threads into webs.

27. ARACHNIDS
•Arachnids have
two body
segments and
have no
antennae.

28. EXAMPLES OF ARACHNIDS

29. 3. CRUSTACEANS
•Crustaceans have five pairs of legs for
swimming or walking.
•A Crustacean’s body is made up of 50
segments but most crustaceans have
only 19.
•A Crustacean’s body has three
segments – HEAD, THORAX and
ABDOMEN.

30. CRUSTACEANS

31. CRUSTACEANS

32. CRUSTACEANS
•Crustaceans
have two pairs
of antennae.
The antennae
are organs that
touch, taste and
smell food.

33. 4. Centipedes
•Centipede means “ hundred feet” .
They have 15- 173 pairs of legs.
•Centipedes have flattened bodies
divided into segments – HEAD and
TRUNK.

34. CENTIPEDES
•Centipedes move
quickly to catch
and eat insects
and worms.
•Centipedes live on
land especially in
moist places.

35. 4. MILLIPEDES
•Millipedes means “thousand feet”.
They have bodies made up of about
20 or more that 100 segments.
•The body is divided into HEAD,
THORAX and TRUNK.

36. MILLIPEDES
•The mouth parts of Millipedes are
adapted for chewing plants.

37. MOLLUSKS

39. Mollusks (Soft-bodied Animals)
•Mollusks are coleomate
animals with bilateral
symmetry, a soft internal
body, a digestive tact with two
openings and muscular foot
and mantle.

40. MOLLUSKS
•Mollusks are found in aquatic
(ocean and freshwater) and
moist land environment.
•Mollusks use radula to scrape
food into their mouth.

41. EXAMPLES OF MOLLUSKS
•Snail
•Octopus
•Oysters (talaba)
•Clams
•Squid

42. ECHINODERMS

43. ECHINODERMS (Spiny-skinned
Animals)
•Echinoderms are marine animals
with spiny endoskeleton.
•Echinoderms use madreporite to
strain food from water.
•Almost all echinoderms have
internal skeleton made of hard
calcified plates.

44. EXAMPLES OF ECHINODERMS
•Starfish
•Brittle stars
•Sand dollars
•Sea Urchins
•Sea Cucumbers

45. SPONGES

46. SPONGES (Pore-bearing Animals)
•Sponges are pore-bearing
animals.
•They have no organs and lack
symmetry.
•All sponges are aquatic and
comes in different shapes.

47. SPONGES
•Sponges have many types of
skeleton made up of tiny
needle-like structure called
spicules that protects them
from animals who try to eat
them.

48. SPONGES

49. CNIDARIANS

50. CNIDARIANS
•Cnidarians are also called
stinging-cell animals.
•Its former name is
Coelenterates.
•It has stinging cells called
Cnidocytes

51. CNIDARIAN

52. CNIDARIANS
JELLYFISH SEA ANEMONE

53. WORMS

55. PLATYHELMINTHES
•Platyhelminthes are flatworms.
•Flatworms are thin, acoelomate that can
be free living or parasitic.
•Flatworms have no digestive system.
•Flatworms are hermaphrodites, they
produce both eggs and sperm cells.

56. PLATYHELMINTHES

57. NEMATODES
•Nematodes are roundworms that
have long, thin and round bodies.
•Roundworms have round bodies,
pointed at both ends and are
covered by tough cuticle.

58. NEMATODES
ASCARIS AND HOOKWORM

59. ANNELIDS
•Annelids are segmented worms.
•They have body segments to help them
move.
•Their bodies are divided into segments
with a ringed appearance.
•Annelids have bilateral symmetry and
have two openings- the mouth and
anus.

60. ANNELIDS
EARTHWORMS AND LEAF WORMS