Answer
d.crust
Explanation
because he covered the layer of the earth
The layer of bedrock is called LITHOSPHERE.
Lithosphere is the rigid outer part of the earth which is made up of crust and upper mantles.The geologic processes that usually occur on the earth surface such as earthquakes are originated from the lithosphere. The lithosphere is bounded by the atmosphere above and the asthenosphere below.
The factors that determines the rate of diffusion in the biological system include: temperature, size of the particles, diffusion distance and concentration gradients. Of all these factors, the most important one is the TEMPERATURE.
The relationship between temperature and the rate of diffusion is a direct one, that is, the higher the temperature the higher the rate of diffusion and vice versa. At high temperature the molecules in the particles move faster because they have higher amount of energy.
I believe it is a Protozoa, but may be wrong...
