1. Welcome to Biology
Room A101
Mrs. O’Hara

Please have a seat

2. Branches of
Biology

3. The Molecular Level
 Study the molecular
units of life.

4. The Molecular Level
 Study the molecular
units of life.
– Investigate the
workings of DNA.

5. The Molecular Level
 Study the molecular
units of life.
– Investigate the structure
of DNA.
– Study basic organic
molecules (protein, fat,
carbohydrate…)

6. The Molecular Level
Study the molecular

units of life.
– Investigate DNA.
– Study basic organic
molecules (protein, fat,
carbohydrate…)
Example: studies the
drugs on DNA.

7. The Cellular Level
Studies cells.


8. The Cellular Level
Studies cells.

– Studies how cells
divide

9. The Cellular Level
Studies cells.

– how cells divide
– structure and function
of a cell

10. The Cellular Level
 Studies cells.
– Studies how cells
divide
– Studies the structure
and function of a
cell
Example:
what happens to
cancer cells
exposed to tobacco.

11. The Multicellular Level
Studies Multicellular

Organisms.
Zoologists set up bat traps

12. The Multicellular Level
Studies Multicellular

Organisms.
– Animal behavior
Zoologists set up bat traps

13. The Multicellular Level
Studies Multicellular

Organisms.
– Animal Anatomy
– Plant Physiology.
Zoologists set up bat traps

14. The Multicellular Level
 Studies
Multicellular
Organisms.
– Animal behavior
– Plant and animal
structure and
function.
Example:
How do roses
reproduce.
Zoologists set up bat traps

15. The Population Level
Studies groups of

organisms.
Zoologists set up bat traps

16. The Population Level
Studies groups of

organisms.
– How does a population
interact with the
environment.
Zoologists set up bat traps

17. 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

18. The Population Level
Studies groups of

organisms.
– How does a population
interact
– What is the effect of humans
on nearby life.
Example:
How does bees communicate?
Zoologists set up bat traps

19. The Global Level
Study organisms and

the environment on a
global scale.

20. The Global Level
 Study organisms and
the environment on a
global scale.
Example:
How does global
warming effect the
number of species
worldwide?

21. The Global Level

22. Name That Level of
Biology!!

23. Studies a pride of lions over
mating season

24. Studies a pride of lions over
mating season
Population Level

25. Which chemical works best
to block the hormones.

26. Which chemical works best
to block hormones.
Molecular Level

27. Which chemical works best
to block hormones.
Molecular Level

28. How does a cell remove
respiratory wastes

29. How does a cell remove
respiratory wastes
Cellular Level

30. Student Handout
Branches of Biology Handout

31. Branches of Biology
Branch Description What is studied? Real World Examples