Answer:
Its either B or D but i think its B
Explanation:
i hope it B if not then its D
B. an atom
Atoms are the basic units of matter and the defining structure of elements.
One negative impact of building a dam could be that it affects natural habitats of animals who live in and around the river. When you build a dam, the river's height becomes smaller because a huge amount of water becomes technically removed or blocked. This can affect animals such as fish or beavers or anyone who needs that water.
I think the answer to this is Karyotype or law of dominance. <span />
Louder cause it makes more sound