Topsoil is the A horizon in figure 7-1.The most leaching of minerals occurs from the A horizon into the B horizon. The C horizon shown in figure 7-1 is most like the parent soil, and <span>the A horizon in figure 7-1 contains the most humus.</span>
Answer:
A
Explanation:
chloroplasts are the energy source for the plant and give life to them
Answer:
Active Transport
Explanation:
Active transport is the process of transport of substances from region of their lower to that of higher concentration. Since the transport occurs against the concentration gradient, it is energy requiring process and needs input of energy to occur.
In given example, liver cells transports vitamins against the concentration gradient in energy dependent manner. Therefore, it is an example of "active transport".
A concentration.
In cells, there are two types of transportation of needed organic compounds. The active and passive transport.
The active transport requires energy or ATP while passive doesn't. Further, diffusion, a passive transport transfers compounds from higher to lower concentrations.
Common type of leukopenia is lymphocytopenia, which is when you have too few lymphocytes.
True
