The reason some toxic chemicals such as DDT & DDE lead to bioaccumulation in our environment is: A) they break down easily B) they taste good C) they are persistent toxins D) they only affect invertebrates such as insects E) they are not fat soluble

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They formed the oceans.  as they melted water was formed and the water made the oceans

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.