Download presentation
Presentation is loading. Please wait.
1
What Does it Mean to Be Alive?
What Are The Characteristics of Life?
2
Exploring LIFE Biology – The study of Life
What does it mean to be ALIVE? How do you know if something is ALIVE?
3
Is Fire ALIVE?
4
Characteristics of Life!
All living things share some basic properties Seven Characteristics of Life E Energy R Respond to Stimuli G Grow & Develop R Reproduction C Composed of cells H Homeostasis
5
Energy: All living organisms obtain & use energy to grow, develop, repair damage, and reproduce
6
Living Organisms 1. PRODUCERS: 2. CONSUMERS:
- Plants and other photosynthetic organisms - Produce their own food (from CO2, H2O, & the sun) upon which the entire ecosystem depends 2. CONSUMERS: - Animals: Obtain nutrients and energy from consuming the food made by producers
7
All Living Things Respond to Their Environment
Example: A plant’s leaves and stems grow toward light Organisms react to stimuli: Light Temperature Odor Sound Gravity Heat Water Pressure
8
ALL ORGANISMS GROW & DEVELOP
Growth & Development ALL ORGANISMS GROW & DEVELOP
9
All Living Things Grow Growth means to get bigger in size
10
All Living Things Develop
Development involves a change in the physical form or physiological make-up of an organism
11
All Living Things Reproduce
Reproduction is the process of producing new organisms of the same type Asexual Reproduction A single parent organism reproducing by itself
12
Sexual Reproduction Two different parent organisms contribute genetic information Involves the combination of male and female sex cells
13
Cellular Organization
Living organisms Consist of organic molecules organized to form cells Cells Life’s basic units of structure and function Composed of one or more cells
14
All Living Things are Made Up of Cells
Smallest unit capable of all life functions Unicellular Organisms Entire organism is made up of one single cell Bacteria and protists
15
Multicellular Organisms
The organism is made up of many cells Cells have specialized functions within the organism
16
All Organisms Maintain Homeostasis
A stable state of conditions in the body that are necessary for life Body temperature Blood volume pH balance Water balance
17
Living Organisms are Homeostatic
Homeostasis: Ability of an organism to maintain relatively constant internal conditions * Example: Temperature regulation in the human body All organ systems contribute to homeostasis
18
Characteristics of Life!
All living things share 7 basic properties Seven Characteristics of Life E Energy R Respond to Stimuli G Grow & Develop R Reproduction C Composed of cells H Homeostasis * Discla
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.