The Crossing Over only occurs in the meiosis on prophase I and metaphase I
Answer:
D
Explanation:
Vegetation on soil protects the soil from erosion because its roots and root hairs help bind the soil particles together. This occurs mechanically by binding soil into crumbs and also chemically by providing organic matter that binds the soil particle into humus that holds moisture. The soil becomes heavy to be carried off by wind erosion. Trees also break the down flow of water hence reducing the capacity of runoff to carry soil sediments.
Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
D. Visible light . Is the correct answer I hope this helps:)
