1. Chapter 1, Section 1 Introduction to Biology
The Study of Life
Chapter 1, Section 1
Introduction to Biology

2. What is Biology?
In the next two minutes, list 10 things that we will study in Biology
Chapter 1, Section 1

3. Biology – The Science of Life
Biology is the science of life
Study the origins and history of life and once-living things
Study the structures of living things
Study how living things interact with one another
Study how living things function
Chapter 1, Section 1

4. What Biologists Do Study the diversity of life Research diseases
Develop technologies (Velcro)
Improve agriculture
Preserve the environment
Chapter 1, Section 1

5. Characteristics of Life
Chapter 1, Section 1

6. The Characteristics of Life
Made up of one or more Cells
Displays Organization
Grows and Develops
Reproduces
Responds to Stimuli
Requires Energy
Maintains Homeostasis
Adaptations Evolve over time
An organism is anything that has or once had all of these characteristics
Have students determine living or non-living for each of the pictures. Have students make graphic organizer for the Characteristics of Life. Either hotdog, hamburger, hamburger or short hotdog, ham, ham, ham.
Chapter 1, Section 1

7. Cells All living things are made up of one or more cells
Cells are highly organized, tiny structures with thin coverings called membranes
a cell is the smallest unit capable of all life functions
the basic structure of the cell is the same in all organisms
Euglena cell (in green) has chloroplasts and can create its own food. Paramecium is also shown
Chapter 1, Section 1

8. Displays Organization
Living things also display organization, which means they are arranged in an orderly way.
Specialized cells are organized into groups that work together called tissues.
Tissues are organized into organs.
Organ systems work together to support an organism.
Chapter 1, Section 1

9. Growth & Development
Growth results in the addition of mass to an organism and, in many organisms, the formation of new cells and new structures.
Development is the process of natural changes that take place during the life of an organism
Click on movie to show radish seeds growing
Chapter 1, Section 1

10. Reproduction
Reproduction is the process by which organisms make more of their own kind form one generation to the next
without reproduction SPECIES could not continue
A species is a group of organisms that can breed with one another and produce fertile offspring.
Chapter 1, Section 1

11. Responsiveness
Anything that is part of the internal or external environment and causes some sort of reaction by the organism is called a stimulus.
The reaction to a stimulus is a response
Chapter 1, Section 1

12. Metabolism (Requires Energy)
living organisms perform many different chemical reactions in order to obtain and use energy to run the processes of life
energy is needed to grow, move, and process information
metabolism is the sum of all chemical reactions carried out in an organism
almost all energy used by living organisms is captured from sunlight
energy flows from sunlight to plants, from plants to plant-eating organisms, from plant-eaters to meat- eaters
Chapter 1, Section 1

13. Maintains Homeostasis
all organisms must maintain a stable internal environment in order to function properly
organisms respond to changes in their external environment, adjusting their processes accordingly
homeostasis is the maintenance of this internal environment in spite of external changes
Chapter 1, Section 1

14. Adaptations
An adaptation is any inherited characteristic that results from changes to a species over time.
change in inherited traits of a species over time is called evolution
organisms with genes that allow them to better meet nature’s challenges are more likely to survive
this is Darwin’s theory of natural selection
Chapter 1, Section 1

15. How do I remember ? M Maintain homeostasis O displays Organization
R Reproduction
S responds to Stimulus
E Evolves and adapts
C made of 1 or more Cells
O (doesn’t stand for anything)
D grows and Develops
E requires Energy
Chapter 1, Section 1

16. Assignment
Make a foldable of the characteristics of life using the pneumatic word you came up with.
Draw a picture for each characteristic of life
Complete pages 2-4 in your Science Notebook
Chapter 1, Section 1

17. What area of science takes scientific
1.1 Formative Questions
What area of science takes scientific
knowledge and applies it to meet human
needs?
exploration
dynamics
physics
technology

18. What is the process of change that takes
1.1 Formative Questions
What is the process of change that takes
place during the life of an organism?
adaptation
development
growth
maturation

19. Some species of plants begin opening their
1.1 Formative Questions
Some species of plants begin opening their
flowers in the morning when they are exposed
to sunlight. What characteristic of living things
does this represent?
acquiring energy
adapting to the environment
displaying organization
responding to stimuli

20. What process regulates an organism’s internal
1.1 Formative Questions
What process regulates an organism’s internal
conditions and keeps them stable?
adaptation
equilibrium
homeostasis
metabolism

21. What process regulates an organism’s internal
1.1 Formative Questions
What process regulates an organism’s internal
conditions and keeps them stable?
adaptation
equilibrium
homeostasis
metabolism

22. Ticket out the door: What is biology?
What does it mean to be alive/ what makes something alive?
What is the difference between living, non-living and dead?