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प्रश्न
Differentiate between open circulatory system and closed circulatory system
उत्तर
| Open circulatory system | Closed circulatory system |
| Blood rushes via sinuses in an open circulatory system, and the tissues are directly immersed in blood | Blood circulates via a network of vessels in a closed circulatory system. |
| Ex. Arthropods, molluscs | Ex. Annelids, vertebrates |
संबंधित प्रश्न
Label the body organization of human in the following figure:
Draw a neat and labelled diagram.
Jellyfish
Species is the ______ unit of classification.
The symmetry exhibited in cnidarians is ______.
Which of the following animals has a true coelom?
Which organism is called Friends of farmers? Why?
Match the following list of animals with their level of organisation.
| Division of Labour | Animal |
| Column I | Column II |
| A. Organ level | i. Pheretima |
| B. Cellular aggregate level | ii. Fasciola |
| C. Tissue level | ii. Spongilla |
| D. Organ system level | iv. Obelia |
Choose the correct match showing division of labour with animal example.
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?
