Question

Give characteristics of (1)Porifera (2)Coelenterata (3)Platyhelminthes (4)Nematoda (5)Annelida (6)Arthropoda (7)Mollusca (8)Echinodermata (9)Protochordata

Answer 1

PHYLUM PORIFERA
i. they are marine except one group that lives in frsh water.
ii. simplest multicellular, diploblastic animals
iii. asymmetrical or radially symmetrical.
iv. they do asexual reproduction.

COELENTERATA
i. they are aquatic (marine).
ii. they are multicellular.
iii. respiratory,circulatory and exceretory organs are absent.
iv. asexual reproduction by budding.

ANNELIDA
i. body teiplobalstic , bilaterally symmetrical, soft, elongated and cylindrical.
ii. exoskeleton absent
iii. true coelomate animals.
iv. sexes may be hermaphroditic or separate

ARTROPODA
i. triploblastic, bilaterally symmetrical and mentamerically segmented animals.
ii. alimentary canal is complete.
iii. sexes are usually separarte.
iv. fertilization is usually internal.

ENCHINODERMATA
i. simple animals may be star like, spherical or elongated.
ii. body triplobalstic , unsegmented and radially symmetrical.
iii. body lacks head but has oral and aboral surfaces.
iv. excretory organs absent.

Answer 2

General Characteristics of Phylum

Explanation:

General Characteristics of Porifera:  

• Poriferans are ordinarily called wipes.  
• These are multicellular life forms which are sessile/stationary in nature.  
• The majority of them are marine while a couple are new water structures.  

General Characteristics of Coelenterata  

• All coelenterates are oceanic, for the most part marine.
• The body form is radially even, diploblastic and doesn't have a coelom.
• The body has a solitary opening, the hypostome, encompassed by tactile limbs furnished with either nematocysts or colloblasts to catch for the most part planktonic prey.  

General Characteristics of Platyhelminthes  

• Their body is dorsoventrally smoothed.  

• They display two-sided evenness.  
• It is a triploblastic, with have a  three germ layers.  
• They don't have a body hole and are acoelomate.  

General Characteristics of Nematoda  

• Their body is reciprocally even and triploblastic.  
• It is a hollow fit  and  round  as a fiddle.  
• They show tissue level association.  

General Characteristics of Annelida  

• They have a long and fragmented body.
• Annelids are reciprocally balanced.
• They are triploblastic. Additionally, they display organ framework evaluation of association, demonstrating organ separation.  

General Characteristics of Arthropoda  

• They have an exoskeleton.  
• They have jointed extremities.  
• Their body is portioned.
• General Characteristics of Mollusca  

• They are respectively balanced.  

• They are triploblastic, which three layers.   

General Characteristics of Echinodermata  

• These are solely marine creatures.  
• The larval structures show reciprocal evenness and grown-up structures show outspread balance.  
• They are triploblastic.  

General Characteristics of Protochordata  

• They are commonly found in marine water.  
• Their body is respectively even, triploblastic, and coelomated.  
• At a specific phase of their lives, their body builds up a long, pole like structure for help called notochord.