Answer: Roots of trees need oxygen.
Answer:osmoregulation is important in maintaining the salt and water concentration in the body of plants and animals
Explanation
Aerobic respiration is the release of energy from glucose or another organic substrate in the presence of Oxygen. Strictly speaking aerobic means in air, but it is the Oxygen in the air which is necessary for aerobic respiration. ... ATP can provide energy for other processes such as muscle contractions.