B. sexual selection, which alters allele frequencies in the gene pool.
Answer: See explanation
Explanation:
In meteorology, station models simply refers to the symbolic illustrations which depicts the weather that occurs at a reporting station.
Meteorologists use station model as it helps in revealing and communicating certain information about the weather of a particular area. It also helps in reporting various data and temperatures. .
The nervous system, i could be wrong.
The general shape of the epithelial cells that are nearest
to the lumen in an empty urinary bladder is in multiple cell layers which are
considered to be a stratified tissue and the cells in it are shaped in terms of
the organ’s distention. This type of epithelial cell is the transitional
epithelium.