Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: Animal Kingdom
Description: 1st PU : deals with the classification of animal kingdom and their sun phylum and their basic characteristics
Description: 1st PU : deals with the classification of animal kingdom and their sun phylum and their basic characteristics
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
Animal Kingdom
Fundamental basis of classification
Levels of organisation - It includes cellular level, tissue level, organ level and organ
system level of organisation
...
Organisation - Animals are classified on the basis of diploblastic or triploblastic
organisation
...
Segmentation - It involves the phenomenon of metamerism
...
Water enters through ostia and goes out through osculum
...
Choanocytes (collar cells) line the spongocoel and the canal
...
Examples: Sycon, Spongilla, and Euspongia
Phylum - Coelenterata (Cnidaria)
Multicellular organisms with tissue level of organisation
They are diploblastic and radially symmetrical
...
Corals have calcium carbonate skeleton
...
Cnidarians exhibit two basic body forms – polyp and medusa
...
Examples: Hydra, Adamsia, and Pennatula
Phylum - Ctenophora
Multicellular organisms with tissue level of organisation
They are diploblastic and radially symmetrical
...
Eight external rows of ciliated comb plates are present
...
Fertilization is internal
...
Examples: Fasciola (liver fluke) and Taenia (Tapeworm)
Phylum - Aschelminthes
Multicellular organisms with organ system level of organisation
They are triploblastic and bilaterally symmetrical
...
Sexes are separate
...
Examples: Ascaris (round worm), Ancylostoma, and Wuchereria
Phylum - Annelida
Multicellular organisms with organ system level of organisation
They are triploblastic and bilaterally symmetrical
...
They are metamerically segmented
...
They have nephridia as excretory and osmoregulatory organs
...
Examples: Pheretima (earthworm), Neries, and Hirudinaria
Phylum - Arthropoda
Largest phylum of kingdom Animalia
They are triploblastic, bilaterally symmetrical, segmented, and coelomate animals
...
They have jointed appendages
...
Respiration through book lungs, gills, book gills, or tracheal system
They have malpighian tubules as excretory organ
...
Phylum - Mollusca
Second largest phylum of kingdom Animalia
They are triploblastic, bilaterally symmetrical, and coelomate animals
...
Usually dioecious and oviparous
They have radula (a file-like rasping organ for feeding)
...
Endoskeleton is of calcareous ossicles
...
Examples: Asterias (Star fish), Echinus (Sea urchin), and Antedon (Sea lily)
Phylum - Hemichordata
They are triploblastic, bilaterally symmetrical, and coelomate animals
...
Respiration through gills; sexes – separate; fertilization – external; development –
indirect
Proboscis gland is excretory organ
...
These animals are characterized by the presence of a notochord
...
Their pharynx is perforated by gill slits
...
They have post anal tail
...
Example: Ascidia and
Doliolum
Cephalochordata- Notochord is persistent throughout life
...
Notochord is replaced by vertebral column in adult
...
The division Agnatha contains a single class called Cyclostomata
...
Jaws are absent
...
The super class Pisces contains two classes – Chondrichthyes and Osteichthyes
...
Operculum is absent
...
Air bladder is absent
...
Poikilothermous i
...
, cold blooded animals
Skin is covered by placoid scales
...
Mostly viviparous
Example: Scoliodon
Class- Osteichthyes
Skeleton is bony
...
Air bladder is present
...
Heart is two-chambered
...
e
...
Mostly oviparous
Example: Hippocampus, Exocoetus
The super class tetrapoda contains four classes called Amphibia, reptilia, aves, and
mammals
...
Respiration is through gills, lungs, and skin
...
Mostly, heart is three-chambered, but it is four-chambered in crocodiles
...
Fertilization is internal; sexes are separate; oviparous
Examples: Snake, lizard, and crocodile
Class- Aves
Homoeothermic i
...
, warm-blooded animals with forelimbs modified into wings
Heart is four-chambered
...
Bones are hollow with pneumatic cavity
...
Heart is four-chambered
...
Fertilization is internal; sexes are separate; viviparous with some exceptions
such as Platypus
Examples: Rat, elephant, and kangaroo
Title: Animal Kingdom
Description: 1st PU : deals with the classification of animal kingdom and their sun phylum and their basic characteristics
Description: 1st PU : deals with the classification of animal kingdom and their sun phylum and their basic characteristics