Answer: sewage in water and factory waste
Explanation:that’s my guess
They are warned about contracting Toxoplasma.
D. Growth. Material forming cells or tissue like cytoplasm.
There are four principles at work in evolution—variation, inheritance, selection and time. The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.
