Depending on who benefits, this relationship can be classified as mutualism or as parasitism
Selman A. Waksman, discoverer of streptomycin, coined this term in the 1940s
It's the branch of biology that specifically studies sometimes harmful one-celled organisms
As opposed to spontaneous generation, it's the theory that life originates only from living organisms
This layer of fat helps maintain a whale's body temperature at 93-99 F., & that's nothing to cry over
When you "make a muscle" in your arm, you contract this 2-headed muscle
It's secreted by the liver, stored in the gallbladder & released into the duodenum after eating
In 1970 David Baltimore proved that this nucleic acid could transmit information to DNA
In plants & invertebrates, this outermost layer of protection is usually just one cell thick
It's any tissue that contracts & relaxes, causing movement of the limbs & other body parts