Ctenophora is an exclusively marine phylum, the other such phylum is
(1) Mollusca
(2) Echinodermata
(3) Porifera
(4) Coelenterata
Ctenophorans are commonly referred to as
(1) Flatworms
(2) Comb jellies
(3) Sea anemone
(4) Cnidaria
The number of ciliated rows present in Comb jellies are
(1) 8
(2) 6
(3) 4
(4) 9
The function of flame cells are
(1) Digestion and excretion
(2) Attachment and osmoregulation
(3) Anchorage and excretion
(4) Excretion and osmoregulation
Presence of flame cells is a characteristic feature of
(1) Nereis
(2) Taenia
(3) Hirudinaria
(4) Pheretima
Which of the following is not an excretory structure found in invertebrates?
1. Flame cells
2. Malpighian tubules
3. Nephridia
4. Kidney
Nematocytes are present in
(1) Adamsia
(2) Hirudinaria
(3) Sycon
(4) Echinus
Which of the following is dioecious?
(1) Taenia
(2) Fasciola
(3) Ascaris
(4) Earthworm
Which of the following is called pearl oyster?
(1) Dentalium
(2) Pinctada
(3) Pila
(4) Aplysia
Radial symmetry is seen in
(1) Mollusca
(2) Chordata
(3) Porifera
(4) Ctenophora