intro to life - biology
TRANSCRIPT
![Page 1: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/1.jpg)
Introduction to Life
![Page 2: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/2.jpg)
Life - the condition that distinguishes animals and
plants from inorganic matter.
Living – alive, not dead or lifeless.
Nonliving – inanimate, inactive, not endowed with
life.
These definitions do not tell us what makes
something alive!
So, what are the characteristics of life??
What makes something alive?
![Page 3: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/3.jpg)
1. Homeostasis
2. Organization
3. Metabolism
4. Growth
5. Adaptation
6. Response to stimuli
7. Reproduction
Characteristics of Life
![Page 4: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/4.jpg)
● Homeostasis – tendency to maintain a
stable, balanced, internal environment.
Characteristics of Life
![Page 5: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/5.jpg)
● Organization – All things are made of one
or more cells.
Characteristics of Life
![Page 6: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/6.jpg)
● Metabolism – must transform energy by
converting chemicals & energy into
cellular components.
Characteristics of Life
![Page 7: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/7.jpg)
● Growth – Increase in size over time
Characteristics of Life
![Page 8: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/8.jpg)
● Adaptation – ability to change over time
in response to the environment.
Characteristics of Life
![Page 9: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/9.jpg)
Characteristics of Life
● Response to stimuli – will react to
environmental factors such as heat,
light, and food availability.
![Page 10: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/10.jpg)
Characteristics of Life● Reproduction – ability to produce more
of the same type of organism.
![Page 11: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/11.jpg)
Is it living?
![Page 12: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/12.jpg)
1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
Is it living?
![Page 13: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/13.jpg)
Is it living?
![Page 14: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/14.jpg)
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
![Page 15: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/15.jpg)
Is it living?
![Page 16: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/16.jpg)
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
![Page 17: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/17.jpg)
Is it living?
![Page 18: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/18.jpg)
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
![Page 19: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/19.jpg)
Okay, so now we know how
to tell if something is living
or nonliving…
How is life organized?
Organization
![Page 20: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/20.jpg)
![Page 21: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/21.jpg)
Cells are the basic building blocks of
living things. They contain organelles
and genetic material.
![Page 22: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/22.jpg)
Tissues are groups
of similar cells
organized to work
together.
Examples: epithelial,
muscle, nervous,
and connective.
![Page 23: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/23.jpg)
Organs are structures
made up of several
groups of tissues
working together to
perform a specific
function.
Examples: heart,
lungs, brain, skin,
etc.
![Page 24: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/24.jpg)
Organ systems are groups of organs
working together to perform a function.
Examples: digestive, cardiovascular,
respiratory, and nervous systems
![Page 25: Intro to life - Biology](https://reader034.vdocuments.net/reader034/viewer/2022042607/55a0faa91a28ab90398b47be/html5/thumbnails/25.jpg)
Organisms are living things. Some are
single-celled, others are multicellular.
Frequently they have many organ
systems working together.