Jambunists, there is a question of whether the butterfly has an exoskeleton. One of you said it has a hydrostatic skeleton because a caterpillar is like an earthworm and has a hydrostatic skeleton. Well, check the Net and you'll find that a butterfly is an insect and like all insects, it has an exoskeleton. And here's some Memory Booster for you!
- Platelets clump together and produce thrombokinase.
- Thrombokinase converts prothrombin to thrombin.
- Vitamin K is needed for the formation of prothrombin.
- Thrombin converts fibrinogen to fibrin.
- Fibrinogen is a soluble protein.
- Fibrin is not soluble.
- Fibrin forms a network to trap the erythrocyte.
- A clot is formed.
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