Advertisements
Advertisements
प्रश्न
Write down four main characters of Annelida.
Advertisements
उत्तर
Main characteristics of Annelida:
(i) They are triploblastic, bilaterally symmetrical, coelomate, soft and elongated animals.
(ii) Their body is metamerically segmented externally by transverse grooves and internally by septa.
(iii) They have a tube-like alimentary canal, which is complete and extends straight from mouth to anus.
(iv) Reproduction is sexual. Sexes may be separate or united (hermaphrodite).
Examples: Sea mouse, earthworm etc.
APPEARS IN
संबंधित प्रश्न
Tick (✓) the appropriate answer:
Scientist who introduced binomial nomenclature is
Write down four characteristics of Ctenophora and give two examples.
What do you mean by the term triploblastic animals? Give two example.
Give four general characters of phylum Mollusca. Write down two examples.
Name the phylum in which ambulacral system is present. What is its function?
Write short note on protochordates.
Describe the important characters of mammals and birds. Give two examples of each.
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Butterfly- Insecta, Invertebrata, Mollusca
Write name of any poikilothermic animal.
Write the name of oviparous mammal.
Give two examples of each of the following: Echinodermata
Give two examples of each of the following: Nemathelminthes
Give two examples of each of the following: Annelida
Fill in the blanks:
Nephridia are the excretory organs of ______.
Choose the correct answer: Mosquito is included in insects because
Choose the correct answer: The animal of phylum protozoa is
Carolus Linnaeus is known as the Father of ______.
True (or) False. If false write the correct answer.
True nucleus is seen in prokaryotic cell.
