Branches of Biology

The Molecular Level• Study the molecular

units of life.

The Molecular Level• Study the molecular

units of life.• Investigate the workings of DNA.

The Molecular Level• Study the molecular

units of life.• Investigate the workings of DNA.• Study basic organic molecules

(protein, fat, carbohydrate…)

The Molecular Level• Study the molecular units of life.• Investigate the workings of

DNA.• Study basic organic

molecules (protein, fat, carbohydrate…)

Example: A scientist studies the effect of drugs on molecules

The Cellular Level• Studies cells.

The Cellular Level• Studies cells.• Studies how cells divide

The Cellular Level• Studies cells.• Studies how cells divide• Studies the structure and

function of a cell

The Cellular Level• Studies cells.• Studies how cells divide• Studies the structure and

function of a cellExample:Scientists look at what happens to

cancer cells exposed to tobacco.

The Multicellular Level• Studies Multicellular Organisms.

Zoologists set up bat traps

The Multicellular Level• Studies Multicellular Organisms.• Animal behavior

Zoologists set up bat traps

The Multicellular Level• Studies Multicellular Organisms.• Animal behavior• Plant and animal structure and

function.

Zoologists set up bat traps

The Multicellular Level• Studies Multicellular Organisms.• Animal behavior• Plant and animal structure and

function.Example:A zoologist looks at the changes in

an organism as it ages.

Zoologists set up bat traps

The Population Level• Studies groups of organisms.

Zoologists set up bat traps

The Population Level• Studies groups of organisms.• How does a population interact

with the environment.

Zoologists set up bat traps

The Population Level• Studies groups of organisms.• How does a population interact

with the environment.• What is the effect of humans on

nearby life.

Zoologists set up bat traps

The Population Level• Studies groups of

organisms.• How does a population

interact with the environment.• What is the effect of

humans on nearby life.

Example:An ecologist looks at how

pesticides effects the local insect population.

Zoologists set up bat traps

The Global Level• Study organisms and the

environment on a global scale.

The Global Level• Study organisms and the

environment on a global scale.Example:How does global warming effect

the number of species worldwide?

The Global Level• Study organisms and the

environment on a global scale.Example:How does global warming

effect the number of species worldwide?

Why does the world fish population drop during El Nino?

Name That Level of Biology!!

Studies a pride of lions over mating season

Studies a pride of lions over mating season

Population Level

Which chemical works best to block the hormones.

Which chemical works best to block hormones.

Molecular Level

Which chemical works best to block hormones.

Molecular Level

How does a cell remove respiratory wastes

How does a cell remove respiratory wastes

Cellular Level

Student Handout

Branches of Biology Handout

Branch Description What is studied? Real World Examples

Branches of Biology