MOVEMENTS IN HYDRA AND EARTHWORM
Movements in Hydra 1) Swaying Sometimes Hydra comes to rest on rock or other suitable hard surface in water and fixes itself temporarily with mucus substances at the basal disc. Even when Hydra is fixed, it is continuously swaying and…
FIRST AID IN HAEMORRHAGE
Haemorrhage (bleeding) is the coming out of blood from the blood vessels which have been damaged. When the loss of blood is to the outside, it is called external haemorrhage and when it is to the tissues, it is called…
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