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
It's any tissue that contracts & relaxes, causing movement of the limbs & other body parts
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 the process by which an organism or cell takes in oxygen & expels carbon dioxide
Architectural term for the minimal stimulus that starts a nerve impulse, like pain
A species of this 10-armed animal is the largest invertebrate, reaching a length of over 50 feet
The name of these microscopic plants & animals that float near the ocean's surface is from the Greek for "wandering"
This French explorer devised special underwater cameras to document his adventures