Friday, January 7, 2011

Task 2 Animalia (Invertebrates)

Characteristics of Invertebrates
  -No Backbone
  -No Spinal Column


Types of Invertebrates
 -Acanthocephala ( Parasitic worms)


 -Annelids (Certain types of worms like the common Earthworm, the slug)
 -Cnidaria (Jellyfish, Seasponge, Sea Anemones)
 -Mollusks (Snails, Squids, Octopi)
 - Crustaceans (Crabs, Shellfish)
-Arachnids (Spiders, Scorpions)
- Insects (butterflies, Grasshoppers)


























http://image.wistatutor.com/content/excretion-and-osmoregulation/earthworm-cross-section.jpeg


http://www.factmonster.com/images/ency102invert008.jpg


Sources: http://www.interestinganimals.net/characteristics_of_invertebrates/characteristics_of_invertebrates.html


http://www.kidport.com/reflib/science/animals/animalindexinv.htm




-Done by Yeo Jun Jie and Michelle Loh-

17 comments:

  1. I have learn that Parasitic worms are group is Acanthocephala. I also discover vertebrates are heterotrophic.

    ReplyDelete
  2. This comment has been removed by the author.

    ReplyDelete
  3. I have learnt that mollusks, unlike crustaceans, have body parts that are both hard and soft. Crustaceans have body parts mostly hard, like crabs.

    ReplyDelete
  4. I have learnt that invertebrates tend to be small and slow-moving.

    ReplyDelete
  5. This comment has been removed by the author.

    ReplyDelete
  6. I have learnt that spinal column is the same as a backbone

    ReplyDelete
  7. I have learnt that there are different types of invertebrates like crustaceans, insects, cnidaria, etc.

    ReplyDelete
  8. I learnt that sea anemones are in the Cridaria group. I have also discovered that most animals are invertebrates.

    ReplyDelete
  9. 1. I have learnt that invertebrates have no backbone for support and can be divided into groups like Acanthocephala (Parasitic worms), Annelids (Certain types of worms like the common Earthworm, the slug), Cnidaria (Jellyfish, Seasponge, Sea Anemones), Mollusks (Snails, Squids, Octopi), Crustaceans (Crabs, Shellfish), Arachnids (Spiders, Scorpions) and Insects
    2. I have discovered that most of the animal species, a surprising number (98%), are invertebrates compared to the much more smaller number of vertebrates (2%).

    ReplyDelete
  10. i have learnt that there are 7 different families of invertebrates
    i have learnt that invertebrates do not have backbones

    ReplyDelete
  11. I have learnt that the group of invertebrates consists of about 95% of known animals

    ReplyDelete
  12. I have discovered that those animals without backbones have shells and hydrostatic skeleton to assume the function of the backbone.

    ReplyDelete
  13. I have discovered that most invertebrates change form as they grow, going through metamorphosis. Metamorphosis is a process by which organisms change form as they mature.
    Also, many of the parasites in the animal kingdom are invertebrates, example, ticks, tapeworms, leeches, and roundworms.

    ReplyDelete
  14. I have learnt that invertebrates have more than 1 heart, which all of them all clustered together near the brain.

    ReplyDelete
  15. I have learnt that there are 7 different types of invertebrates. I've also discovered that invertebrates have different adaptions to make up for their lack of a backbone. Some have hard exoskeletons like the insect and crustaceans. While others like the scorpion in the Arachnid group have a hard exoskeleton and poison.

    ReplyDelete
  16. I have learnt that invertebrates consists of Acanthocephala, Annelids, Cnidaria, Mollusks, Crustaceans, Arachnids, and Insects.

    I have discovered that most invertebrates are bilaterally symmetrical. This includes Arthropoda, Annelids and Mollusks. However, invertebrates of Cnidaria are not bilaterally symmetrical.

    Source: http://docs.google.com/viewer?a=v&q=cache:sJztYiLe8RwJ:www.msc.ucla.edu/oceanglobe/pdf/Invertebrates/Inverts_Entire.pdf+key+characteristics+of+invertebrates&hl=en&pid=bl&srcid=ADGEESiZKWMSE_iDwL6m21owrI-Wwvu1iU1qPo9rQ3J0Qi7kt7IvdtFY843OU4aJQ_baYQoU989fuHRQ_D_9aQOjedk_veeKtyQ7nmdgFPGZ5AoZEl8DYCxAmS0Q-ABaXFUAW1kJZRSo&sig=AHIEtbRABtpzfhWwBDdDIny3CZsKxGUrFA

    ReplyDelete
  17. I learnt about the invertebrates in animalia groups Annelids, Cnidaria and Mollusk. I have also discovered that invertebrates are heterotrophic.

    ReplyDelete