Question

To observe cells under the microscope, Ravi peeled off

portions of epidermis from a big and a small onion bulb

and immersed those in water. Why?

What difference did he observe between the cells of the

two bulbs in terms of shape and size? 2​

Answer 1

Answer:

The joule ( jawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m).