Question

4. State whether the following statements are true or false :
(i) Endoskeleton is present in invertebrates.
(ii) Diploblastic means the body is derived from two germ layers.
(iii) The venation in dicot plant is parallel.
ermata
(iv) Embryo formation after fertilization is absent in Thallophyta.
(v) Exoskeleton of reptiles is dry and scaly.
(vi) Most of the chordates have a postanal part called tail.
(vii) Flame cells are excretory organs of Colenterates.
(vili) Conifers inhabit the cool, temperate mountain tops.

5. Explain the following terms :
(i) Sedentary
(ii) Radial symmetry
(iii) Holophytic nutrition
(vii) Holozoic nutrition
(vili) Bilateral symmetry
(iv) Species
(v) Pseudocoel
(vi) Polymorphism
(vii) Encystment
ymmetry
(viii) Ecdysis

6. Give the name of the phylum or class
(i) Octopus
(ii) Earthworm
(iii) Ascaris
(iv) Sycon

characters of the following phylums :
(iv) Coelenterata
(iii) Mollusca
(ii) Arthropoda
(vi) Porifera
(i) Chordata
(v) Ctenophora

8. Give one difference between the following pairs ?
Protozoa and Metazoa
Flatworms and Roundworms
Cartilagenous and Bony fishes
Annelids and Nematodes
Aves and Mammals

[the numbering maybe messed up a little bit]

Answer 1

Answer:

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