EXERCISES

A) Give the right answers in the quiz you can find in the following link:

B) Try with the following crossword:

C) Enjoy painting!!

Some interesting slides about ARTHROPODS

Enjoy the slides below!!!!

Phylum arthropoda from Reitmans

Classification

INVERTEBRATE ANIMALS-CLASSIFICATION

• SPONGES
• ECHINODERMS
• JELLYFISHES, ANEMONES and CORALS
• ANNELIDS
• MOLLUSCS
• ARTHROPODS

Characteristics

INVERTEBRATE ANIMALS- CHARACTERISTICS

• The main characteristic that separates invertebrates from other organisms is the absence of the spinal column and backbone.
• They are devoid hard bony endoskeleton. 
• Due to the lack of complex skeletal systems, some invertebrates tend to be slow and small in nature. 
• Due to the lack of the backbone and complex nervous system the invertebrates cannot occupy mulitple environments, though they are found in the harshest of the environments. 
• Invertebrates live all over the world in various habitats.
• Body is divided into three parts - head, thorax and the abdomen.
• They do not have lungs for respiration.
• Respiration is through skin.
• Some invertebrate groups possess a hard, chitinous exoskeleton. 
• Most of them have tissues, that are specific organization of cells.
• Most of them reproduce sexually by the fusion of the male and female gametes. 
• Few invertebrates like the sponges are sedentary, but most of the organisms are motile. 
• Most invertebrates are organized with symmetric body organization.
• They can not make their own food, are heterotrophs.

Animals or plants???

Are you sure about the differences between animals and plants?
Do you know what is an invertebrate animal?

In this blog we are going to answer these questions, Are you ready????

See the following picture and discuss with your classmates about it.