Why are sources like oil on the street from a car and lawn runoff considered nonpoint pollution?*
A. There is no origin site
B. They are easily traced to a source
C. It is easily measured by hectares
D. They are difficult to identify the initial source

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

What are the types of mutations, and how does each alter the encoded protein? college level answer

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited