Estuaries. Brackish water condition commonly occurs when fresh water meets seawater. In fact, the most extensive brackish water habitats worldwide areestuaries, where a river meets the sea. The River Thames flowing through London is a classic river estuary.
a proton located in the atom is the nucleus
Answer:
A lack of genetic variation in offspring
I believe animals that possess homologous structures probably evolved from the same ancestor. Homologous structures are similar because of common ancestry. A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor.
