Question

What is open circulatory system What is open security system what is open circulatory system

Answer 1

Explanation:

Open circulatory systems (evolved in insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.

Answer 2

Answer:

Answer:

Magnetic fields

↳ space surrounding a magnet within which a magnetic force is experienced.

It is a rector quantity . SI unit is tesla.

Magnetic field Lines

h Imaginary lines used to represent magnetic field.

When iron fillings are kept near a magnetic ,they get arranged in a pattern which rep

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Explanation: