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Q. What is the difference between mussels and octopuses regarding their circulatory systems? How does that difference influence the mobility of these animals?
Cephalopod molluscs like octopuses and squids have a closed circulatory system with blood pumped under pressure flowing within vessels Bivalve molluscs like oysters and mussels have an open circulatory system that also known as lacunar circulatory system where blood flows under low pressure since it falls in cavities of the body and doesn't only circulate within blood vessels. Molluscs with closed circulatory systems are larger agile and can actively move molluscs with open circulatory systems are slow, smaller and some are practically sessile.
Define Body weight as a determinant of nutrient requirements? Requirements are considered to be a function of body weight for individuals who are not overweight. However, for s
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From Molecules to the First Cell The prebiotic conditions on the earth in all probability were volcanic eruptions, lightning and heavy rains. There was no trace of free oxygen
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life cycle of plathyhelmenthes
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