1. Life
Characteristics

2. Objective: You will be able to differentiate between living and nonliving things.
Do Now:
Read the introduction on top of page 16
Define biology

3. Characteristics of living things
Made up of cell(s)
Grow and develop
Reproduce
Obtain and use energy and materials
Respond to the environment
Maintain a stable internal environment
Based on a genetic code
As a group, change over time

7. Objective: You will be able to identify cells using a compound light microscope.
Do Now:
Read “Made up of cells” on p. 17
How many different cells are found in the human body?

8. Living things and cells
All living things are made up of one or more cells
Cells are the functional unit of living things
Some organisms have only one cell and are called unicellular
Some are even made up of trillions of cells

10. Do you smell what the Rock’s cooking?

11. Living things grow and develop
Unicellular creatures simply increase their cell size
Multicellular organisms go through growth called development
Development begins with a fertilized egg that divides into different types of cells
This is called differentiation because it makes different types of cells

12. Objective: You will be able to explain how reproduction can create offspring that are similar and different.
Do Now:
Read “Reproduction” on p. 17
Differentiate between sexual and asexual reproduction

13. Reproduction Is the creation of a new individual Can be done by:
Sexual reproduction
Asexual reproduction

15. Types of reproduction
Sexual involves cells from two different parents combining
Offspring are not exactly like either parent
Asexual involves one parent creating offspring
Offspring are usually identical to parent

16. Based on a genetic code
Explains how offspring inherit traits from parents
Traits are characteristics passed from one generation to the next
DNA is a molecule that carries the traits from parent to offspring
It is called the hereditary material

17. DNA

18. Do you smell what the Rock’s cooking!

19. How many different letters are there?

20. Paired Activity View several hydra under the microscope
Draw a hydra and label the parent and the offspring
Write a sentence that compares the offspring to the parent
How does the hydra know how to make another hydra and not a monkey?

21. Objective: You will be able to explain the reason why organisms must consume food.
Do Now:
Read “Need for material and energy” on p. 18
List the reasons that organisms need materials and energy

22. Obtain and use materials and energy
Food is energy
Organisms take in material for energy
Some organisms eat (heterotrophs)
Some take in water and carbon dioxide to make their own food (autotrophs)
They use this energy to do chemical reactions to stay alive and grow
All of the chemical reactions involving energy to keep organisms alive is called metabolism

25. Paired activity
You will be given nutritional facts about McDonalds and Subway
Choose a typical meal you would have at each place
Compare your choices with the daily recommended diet (below)
Compare fats, protein, carbohydrates and calories
Choose 1 complete meal from each restaurant that would not exceed the daily recommended diet.

26. Response to the environment
Organisms detect and respond to stimuli
A stimulus is a signal which causes an organism to respond
Ex. Bright light, predator
These are examples of external stimuli
A stimulus can also be internal
Ex. Too much CO2 in blood
Organisms must respond to the environment to maintain homeostasis

27. Maintain a stable internal environment
Even with changing external environment, most organisms must keep internal conditions stable
Examples:
Body temperature
Blood sugar levels

29. Objective: You will be able to explain how favorable traits increase in a population.
Do Now:
Read “Evolution” on p. 20
Why can’t individuals evolve?

30. Organisms change over time
Individuals don’t change over time but groups do change
This change over time is called evolution
Over thousands of years, these changes can become significant
Explains the diversity of life

32. Adaptations
Favorable traits that allow the organism to survive is called an adaptation
Question
What would happen if an individual was born with a new adaptation?
Favorable traits (adaptations) increase in a population over time.
Continues to increase until all individuals have it
So overall, all of the organisms did change

33. What do you know? List 3 things you already know about evolution
List 2 things you know about human evolution
There are no right or wrong answers.

34. Objective: You will be able to list the levels of organization of life.
Do Now:
Read “Branches in Biology” on p. 20

35. Organization levels Biologists break life down into different levels
This make sit easier to study life
The order from smallest to largest
Cells, tissues, organs, organ systems and organism

36. Cells make up living things

37. Tissues are groups of cells that work together

38. Organs are made of tissues working together

39. Organ systems are made of organs that work together

40. Organism is made of a group of organ systems working together

41. Paired Activity Chose one of the tissue slides
Locate a cell of that tissue under high power
Draw the cell and list what tissue it came from
Repeat this until you have viewed four different tissue slides