Question

Give reasons

1)Rate of respiration in aquatic organisms is higher terrestrial organisms.

2)Arteries have thick ,elastic walls.

Answer 1

Answer:

1) rate of respiration is higher in aquatic organisms because the amount of dissolved oxygen in the water is very less than often level on the land.

2) arteries have thick and elastic was since the oxygenated blood from the heart is pumped out with a high pressure , thin walls will burst due to this pressure .

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Answer 2

Answer:

1:- Rate of Respiration: Rate of respiration in aquatic organisms is higher than because aquatic organisms has to breathe the oxygen dissolved in water while terrestrial organisms breathe the oxygen present in air.

2:-Arteries has thick elastic walls because the blood in them rushes at high pressure and because of the high pressure it could breaks the walls so as to avoid that form happening they have thick walls.