which advance resulted from the development of a culture technique for muscle cells?

a.) smallpox inoculant

b.) insulin production

c.) polio vaccination

d.) vitamin e production

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

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