Answer:
To replace dead or damaged skin cells.
Explanation:
Answer:
Plants obtain water through their roots. ... The water passes through the membranes of plant cells and also fills the spaces in between the cells. Because the cells absorb the water directly, the soil must be in contact with the roots in order for the roots to absorb the water.
Answer:
The correct answer will be option-D
Explanation:
Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.
The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.
The surfactant act by forming a monolayer surface film which helps reduce the surface tension.
Thus, option-D is the correct answer.
