Question

Give reasons:
(1)The number of stomata are more on the lower surface of the leaf as
compared to the upper surface.
(ii) Arteries are thick walled.
(in) Plants have low energy needs.
(iv) Aquatic animals breathe faster than the terrestrial animals.
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Answer 1

plant have low energy required because due to following reason 1 plant have a very low maintenance maintenance on their body they are not move they are not move rice reproduction is mostly taken by the government so in this case loss of energy is less so they require less energy plant and aunt is a combination of grid cell and cell while human is a mostly made of life cell if a life cell is is defected then human body is fractured and not able to work properly 2. aquatic animal breathe faster because I have to capture the oxygen from the dissolve in water and human being is not 200 human being have a plenty of oxygen from a environment .3. artery have thick wall because blood flow in ..

Answer 2

Answer:

ii arteries have thick walls because it pumps the blood all over the body

iii plant have low energy requirement because they are non motile

iv oxygen is less soluble in water that's why aquatic animal breath faster to fullfill their oxygen requirement