1. If the field of view is 2.5 mm, how many micrometers is that?
Agenda for Tuesday Dec 20th
Quiz
Go over lab
What is life stuff

2. divide the items into 4 categories: alive, never alive, once was alive, and not sure
Dog Dead mouse Earthworm Cactus Air Butterfly Oak leaf Bacteria Lichen Ear of corn Fire Pencil Glass Clock Wood Paper Ant Dirt

4. What is biology?
Study of life

5. Life is Diverse
Biodiversity refers to the many different types of organisms on earth.
Taxonomy is the biological science that classifies life according to evolutionary relationships.
The Domain is the largest group of organisms.=

6. 6 Kingdoms

7. Human classification scheme: Genus & species Homo sapiens
Domain Eukarya
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Primates
Family Hominidae
Genus & species Homo sapiens
Kings Play Chess On Fine Green Squares

8. Characteristics of life
Made of one or more cells
Basic unit of life – exhibit all characteristics of life
Unicellular – one cell
Multicellular – many cells

9. 2. Displays organization
Arranged in an orderly way
Cells have many parts that contribute to whole

10. Characteristics of life
3. Grows and develops a. Add mass or more cells b. Develop – natural changes during the life of organism 4. Reproduces a. Produce offspring – pass on DNA!! b. Reproduce as a species not individual

11. 5. Responds to stimuli a. React to factors outside/inside organism b
5. Responds to stimuli a. React to factors outside/inside organism b. Plants and sun c. Predators/prey

12. a. Keeping internal conditions stable/within a tolerable range
6. Maintain homeostasis
a. Keeping internal conditions stable/within a tolerable range
sweating, shivering

13. 7. Requires energy
*Metabolism - biochemical reactions that acquire & use energy
8. Adapts over time
a. inherited changes that occur over time

14. Characteristics of life
Made of one or more cells
Displays organization
3. Grows and develops
4. Reproduces
5. Responds to stimuli
6. Requires energy
7. Maintain homeostasis
8. Adaptations evolve over time
Review Video
11 Biggest living things

15. A Short Quiz: 1. What are the characteristics of life?
2. What is homeostasis? What is an example of homeostasis?
3. Is a computer living? Why or why not?
4. Why is energy required by living things?

16. What is Life: Martian and the Car
Below is a description of a car Marty the Martian believes to be alive. From his description give examples of why the car is and is not alive.
At the trial, Marty spoke in his defense. "I first saw these life forms rolling along roads in great numbers. They were giving off thick clouds of poisonous waste as they moved. They seemed to exhibit herding behavior, as many of the cars moved in the same direction. They appeared to have a great deal of energy, some of them moved faster than 75 miles per hour. When one of these life forms stopped or slowed down, the others behind it responded. They slowed down and gave off a reddish light from the back, and sometimes they would make honking noises. I observed that they would stop to feed on a liquid substance."

17. What makes something alive?
Agenda