<span>They are organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.</span>
Primary consumers only eat primary producers such as herbivores and secondary consumers are carnivores and omnivores
B ~ You cannot tell if someone was touching your hand
Hope this helps! ^^
Answer: All of these
Explanation:
The polymerase chain reaction (PCR) revolutionized the field of molecular biology because PCR uses a small amount of DNA as a template.Paired with two primers which side to the target sequence, nucleotides, and thermostable DNA polymerase amplifies a specific region of DNA. In this way a large amount of DNA is obtained from a very small sample.