Which of the following is well marked in Ctenophores?
1.Comb plates
2.Tentacles
3.Bioluminiscence
4.Diploblastic body plan
Which of the following is true about digestion of Ctenophores?
1.Extracellular digestion
2.Intracellular digestion
3.Both 1 and 2
4.Neither Intracellular nor Extracellular
Which of the following is true about Ctenophores?
1.Reproduction takes place by sexual means only
2.Fertilisation is external
3.Indirect development
4.All of these
Pleurobrachia is
1.Hermaphrodite
2.Dioecious
3.Bisexual
4.Both 1 and 3
Which of the following is common in Cnidarians and Ctenophora
1.Digestion is both intracellular and extracellular
2.Cnidoblast
3.Only sexual means of reproduction present
4.Metagenesis
Which is not true for Ctenophora
1. | Mesoglea is absent | 2. | Bilateral symmetry |
3. | Triploblastic | 4. | All of the above |
Which of the following attribute started from Platyhelminthes
1.Organ level of organisation
2.Coelom
3.Segmentation
4.Closed circulatory system
Which is true for flatworms?
1.Bilaterally symmetrical
2.Triploblastic body plan
3.Acoelomate animals
4.All of these
Which of the following helps in excretion and osmoregulation in Flatworms
1.Flame cells
2.Nephridia
3.Malphigian tubules
4.Green glands
Hooks and Suckers are present in
1.All Flatworms
2.Parasitic flatworms
3.Non-parasitic flatworms
4.None of these