Respuesta :
The cell wall in trees support the tree so it can grow above plants where sunlight is not blocked from leaves.
Answer:
The plant's species has an advantage over the animals as they possess an extra layer around the plasma membrane called the cell wall.
The cell wall is composed of the cellulose, pectin and hemicellulose which provides mechanical strength and toughness to the plants as well as they help protect the plant from the external environment.
Since cell wall provides mechanical strength to the plant therefore, plants have got the ability to stand upright to a height.
