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प्रश्न
Give an account on phylum Arthropoda.
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उत्तर
- Arthropoda is the largest phylum.
- The organisms have jointed legs.
- The body is segmented into head, thorax and abdomen.
- The exoskeleton is made up of chitin.
- The coelomic cavity is filled with haemolymph (blood).
- They do not have defined blood vessels. This is called open circulatory system.
- The insects shed the exoskeleton and this process is called moulting.
- Small Arthropods absorb oxygen through the body and larger aquatic species breathe through book gills.
- Land Arthropods breathe through a system of tiny body tubes called tracheae.
- Excretion occurs through malphigian tubules and through green glands in crabs and prawns. .
- Insects, spiders, crabs, shrimps, butterflies, millipedes, centipedes, and scorpions are some arthropods.
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संबंधित प्रश्न
To which phylum does Cockroach belong? Justify your answer with scientific reasons.
Observe the following diagram. Write the answers of the following questions.
- To which phylum does the animal included in the diagram belong?
- What is the exoskeleton made up?
- What is the symmetry?
Which animal has three pairs of legs?
Observe the following figure and answer the following.
- Due to which common characteristic the animals shown in the figure belong to the same phylum?
- The exoskeleton of these animals is made up of which chemical?
- Give another two examples of this phylum.
Malphigian tubules also called as ______.
Differentiate between oviparous and viviparous characteristic
Give a scientific reason.
Cockroach belongs to phylum Arthropoda.
Identify my class/phylum and give one example of it:
We form the highest number of animals on the planet. We have bilateral symmetry and our exoskeleton is in the form of chitin.
Write the correct co-relation.
Butterfly : Arthropoda : : Earthworm : ______.
Which of the following animal is matched with the wrong excretory organ?
