What is the frequency of individuals with doctorates who work in the field of physical science?

O 0-1,000

1,000-2,000

2,000-3,000

O 3,000-4,000

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

What will happen if deforestation continue to destroy the green plant on the planet

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna