Early Sciences (People who do science)

Francesco Redi

1668, Two jars (sealed and not sealed) with meat. Proved that the maggots came from their eggs not the meat. Disoved SG.

John Needham

1745, He heated broth in sealed flask. The broth became and had Microorganism. He supported SG. He did not boil the broth long enough (Did not kill all the Microorganisms).

Lazzaro Spallanzani

1768, He boiled broth longer the Needham. Only unsealed flask became cloudy. He disproved SG.

Louis Pateur

1859, He worked with flask S-shaped tubes that were open to the air. Only flask that were tilted and broth was exposed to dust became cloudy. He disproved SG and proved Biogenesis.

Alexander Oparin

1924, He said elements in the atmosphere were combined by heat to make to make the complex compounds found in living things (primordial soup)

Stanley Miller and Marold Urey

1953, They experimented to proved Oparin’s ideas. Their experiment did not support Oparin’s experiment - it did not prove that life began in that way.

Dichotomous Key

is a series of descriptions arranged in pairs that lead the user to the identification of an unknown organism

Classification

system of organization based on shared characteristics or qualities

Systematics

the branch of biology that deals with classification

Species

is a group of organisms that have similar traits and are able to produce fertile offspring

Biodiversity

variety of life that can be found on Earth

Binomial Nomenclature

gives each organism a two-word scientific name

Genus

A group of similar species

Aristotle

384 B.C- 322 B.C- Greek philosopher, who lived more than 2,000 years ago. He was one of the first people to classify organisms.

Carolus Linnaeus

1700s- , a Swedish physician and botanist, classified organisms based on similar structures.

Robert H. Whittaker

1960s -an American biologist, came up with a five-kingdom system for classifying organisms. Those kingdoms are Monera, Protista, Fungi, Plantae and Animalia.