Answer:
because it sucks up water
It is probably the l<span>amellae.
The lamellae are sheets of bony matrix. This bony matrix is produced by o</span>steoblasts, which are cells that synthesise collagen<span> and specialised proteins like </span>osteocalcin<span> and </span>osteopontin. These are then the most important constituents of the bony matrix.
The structure of the mature sperm contains a tail, middle section having mitochondria and a head part. The tip of the head part contains <u>acrosome </u>and nucleus. The sperm at maturity, contains a cap like structure at the anterior end. It is termed as acrosome. In this structure, enzymes are present which help the sperm to penetrate into the egg for fertilization. The acrosome allows the plasma membranes of both the cells to fuse and fertilization takes place.
Answer:
Diffusion
Explanation:
Diffusion is the process through which molecules in the cell are kept in balance with those outside the cell.
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.
Through the above mechanism, molecules having higher concentration in the cell move out of the cell and vice versa thereby maintaining the balance of molecules in and outside the cell.
<span>If a treatment suddenly lowers your serotonin level you may feel sluggish and should consult a doctor immediately. There are prescription drugs which can stabilize serotonin levels, but must be prescribed by a doctor.</span>
