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प्रश्न
What are adaptations in fishes due to which they are aquatic?
उत्तर
Certain adaptation characteristics in fish, due to which they are aquatic, include:
(i) Presence of gills for respiration
(ii) Fins for locomotion (swimming) and balance with a streamlined or spindle-shaped body
(iii) Cold-blooded (ecothermic)
APPEARS IN
संबंधित प्रश्न
Match the following:
| Column I | Column II | ||
| (a) | Operculum | (i) | Ctenophora |
| (b) | Parapodia | (ii) | Mollusca |
| (c) | Scales | (iii) | Porifera |
| (d) | Comb plates | (iv) | Reptilia |
| (e) | Radula | (v) | Annelida |
| (f) | Hairs | (vi) | Cyclostomata and Chondrichthyes |
| (g) | Choanocytes | (vii) | Mammalia |
| (h) | Gill slits | (viii) | Osteichthyes |
What do you mean by the term coelomate animals? Give two examples.
Write down four general characters of phylum Echinodermata. Give two examples.
Give one point of difference between notochord and nerve cord.
Distinguish between polyp and medusa.
Write down four general characters of cnidarians (coelenterates). Give two examples.
Describe the important characters of mammals and birds. Give two examples of each.
What are the group names of the following categories of animals?
Animals with three pairs of legs ___________
Give any one difference between the following :
Flatworm and Roundworm
Give four important characters of mammals.
Write two main characters of the following animal and name the phylum it belongs to: Jelly fish
Write the name of a mammal who lives in water.
Write the name of oviparous mammal.
Give two examples of each of the following: Pisces
Give two examples of each of the following: Arthropoda
The binomial name of onion is ______.
Assertion: Binomial name is the universal name and contains two names.
Reason: It was first introduced by Carolus Linnaeus
Select the INCORRECT statement from the following.
Bilaterally symmetrical and acoelomate animal are exemplified by:
