Question : Animals having open circulatory system possesses:
Option 1: coelenteron
Option 2: spongocoel
Option 3: pseudocoel
Option 4: haemocoel
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Correct Answer: haemocoel
Solution : The correct option is haemocoel.
Animals with an open circulatory system frequently have a bodily cavity known as a "haemocoel" or "hemocoel". The haemocoel is a huge fluid-filled hollow that surrounds the body's organs. The circulatory fluid, termed hemolymph, is pushed into the haemocoel by a heart in animals with open circulatory systems, such as arthropods (like insects and crustaceans) and certain molluscs.
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Question : Which of the following pairs has open type of circulatory system?
Option 1: eartworm and leech
Option 2: man and whale
Option 3: cockroach and silverfish
Option 4: tadpole larva and fish
Question : Which of the following animals does not have nervous system?
Option 1: Leech
Option 2: Tapeworm
Option 3: Amoeba
Option 4: Snail
Question : The Ganga-Bhagirathi-Hooghly river system is the national waterway number
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Question : Expansion of RDBMS is:
Option 1: Repairable Database Mangement System
Option 2: Relational Database Managment System
Option 3: Relational database Memeory System
Option 4: Recurring Database Memory System
Question : Normally animals can change the place, but which one of the following animals cannot change the place?
Option 1: Starfish
Option 2: Sponge
Option 3: Hydra
Option 4: Leech
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