By: Siti Nur E’zzati Zaidi & Nur Aida Amira (S3K2P6[B])
[Pick the date] |
Practical Class Lecturer: Pn Suria
Tutorial Class Lecturer: Miss Lock Shu Ping
Table of contents
Phylum Porifera…………………………………………………..3
Phylum Coelentrata…………………………………………….4
Phylum Platyhelminthes……………………………………..5
Phylum Nematoda………………………………………………6
Phylum Annelida………………………………………………….7
Phylum Mollusca…………………………………………………..8
Phylum Arthropoda…………………………………………….9 Class Crustacea……………………………………………..9 Class Chilopoda…………………………………………….10 Class Diplopoda…………………………………………….11 Class Insecta…………………………………………………..12 Class Arachnida…………………………………………….13 Class Merostomata……………………………………….14
Phylum Echinodermata………………………………………15
Phylum Porifera
Unique characteristic of Porifera I- Cellular level of organization II- Mostly marine, some in fresh water III- Body plan has no definite symmetry IV- Simplest type of metazoan organization V- Reproduce sexually by budding and fragmentation; sexually by egg and sperm VI- Mostly monoecious
Example: Leucosolenia (Sponges)
Unique characteristic of sponges: I- In the mesophyl are the spicule(sharp, calcium carbonate or silica structures) which form the skeletal fibres of many sponges
Phylum Coelentrata/Cnidaria
Unique characteristic of Coelentrata/Cnidaria: I- Mostly marine except few freshwater forms II- Radial symmetrical, true tissues but lack organs III- Simple nerve net in body wall IV- Sexual and asexual reproduction V- Life cycle including separate polyp and medusa stages sessile(adult), free floating medusa VI- Exhibit the phenomenon of polymorphism VII- Carnivorous
Example: Obelia sp. (Hydra) Class: Hydrozoa
Unique characteristic for Hydrozoa: I- Alternate polyp and medusa forms in the life cycle although the polyp is the dominant stage II- No mesenteries