Remember, diffusion is when molecules move from an area of HIGH concentration to an area of LOW concentration. Therefore, in this example the molecules on the outside, where the concentration is high, will diffuse to the inside of the circle, where the concentration is low.
The answer is d. semi permeable nature of the membrane
Jennifer explained that an apple is really good for you because it has vi tams your body needs.
It is called as conservation biology. Conservation biology
aims to protect species, their habitats and the ecosystem from extinction. It is
one field of ecology that focuses on the environmental problems caused by
humans. It aims to reverse and understand the cause of loss of biodiversity.
Adrenaline is known as the emergency hormone because it is released by the adrenal glands under the conditions of stress or excitement.