1 |
In hydra ectodermal cells get food from endodermal cells by. |
Osmosis
diffusion
Active transport
Facilitated diffusion
|
2 |
Hydra is the example of. |
Tentacular feeding
Fiter feeding
Pluid feeding
scraping feeding
|
3 |
The polyp is reduced and medusa is dominant in |
Actinia
Aurelia
Oblelia
Madreporite
|
4 |
In phylum coelenterate special cells cnidocyntes give size to |
Polyps
Nematocyts
Gemmules
Gastrozolds
|
5 |
Corals produce hard exoskeleton formed of. |
NaCO3
CaCO3
NaOH
KCl
|
6 |
Polypo and Medusae are examples of. |
Coelentrate
Nematoda
Porifera
Arthropoda
|
7 |
Sea Urchin belong to phylum |
Coelantrate
Nematoda
Porifera
Arthropoda
|
8 |
Hydra belongs to phylum |
Mollusca
Cridaria
Arthropoda
Annelida
|
9 |
Polymorphism is a characteristic of members of phylum. |
Porifera
Cnidaria
Annelida
Arthropoda
|
10 |
Th polyp is reduced and medusa is dominant. |
Jelly fish
Hydra
Sea anemon
Obelia
|
11 |
80% of food of sponges consists of. |
Detrital organic matter
algae
Phytoplankton
Zooplankton
|
12 |
In sponges the food enters the spongocoel cavity called. |
Globules
Gemmules
Endosperm
Ostia
|
13 |
In sponges the food enters the spngocoal cavity throgh |
Ostia
Osculum
Mouth
Spiracles
|
14 |
In sponges asexual reproduction takes place by budding. The internal buds are called. |
Globules
Gemmules
Endosperm
Cyst
|
15 |
The pores by which water enters in the body of sponge is called. |
Osculum
Ostia
Mouth
Spongocoel
|
16 |
The asexual reproduction in sponges occurs by. |
Budding
Spores
Fragmentation
Conidia
|
17 |
The process by which the water leaves the body of sponges are called. |
Ostia
Mouth
Anus
Osculum
|