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All things considered to be alive have what characteristics in common
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All things considered to be alive have what characteristics in common?. Make a list of reasons why you think the following organisms are considered “alive”. Team that comes closest wins!! . 8 characteristics of living things. Have cells and DNA Reproduce Grow and Develop Use energy

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All things considered to be alive have what characteristics in common?

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All things considered to be alive have what characteristics in common

All things considered to be alive have what characteristics in common?

  • Make a list of reasons why you think the following organisms are considered “alive”.

  • Team that comes closest wins!!


8 characteristics of living things

8 characteristics of living things

  • Have cells and DNA

  • Reproduce

  • Grow and Develop

  • Use energy

  • Have a need for materials and energy

  • Respond to environment

  • Maintain internal balance

  • Evolve over time as a species


1 have cells and dna

1. Have cells and DNA

  • Unicellular

  • Multi-cellular


1 have cells and dna1

1. HAVE CELLS AND DNA

  • Multi-cellular: cells differentiate from a single fertilized egg cell, and they just “know” to become a heart, leg etc.

  • Uni-cellular : one celled organism (amoeba or bacteria)

  • Both above have DNA ( the genetic code: which is why we look like our parents)


2 all living things reproduce

2. All living things reproduce

  • There are 2 ways in which this can be done…


Types of reproduction

Types of reproduction


2 all living things reproduce1

2. All living things Reproduce

  • There are 2 types of reproduction:

  • Asexual : 1 parent (budding) - identical

    • bacteria

  • Sexual: 2 parents

    • cats

    • people


3 living things grow and develop

3. Living things grow and develop

  • What is the difference between the 2 words?


Growth and development

Growth and Development

  • Bacteria- grow, they just increase in size

  • People – develop … they increase in size and their bodily functions change over time….until they become an adult

  • ex) puberty…


Living things use energy to grow develop reproduce or just stay alive

Living things use energy to grow/develop/reproduce… or just stay alive

  • Where do we get energy from?

  • Metabolism: combination of chemical reactions through which an organism builds up and breaks down materials (will release energy) as it carries out life processes

    • Fast metabolism- break down

    • Slow metabolism – store for later


How obtain energy

How obtain energy?

  • Plants: From the sun’s energy “photosynthesis”

  • Lion: From eating other organisms “herbivore, carnivore”

  • Mushroom: From the remains of dead organisms (decomposers)


6 living things respond to stimuli

6. Living things respond to stimuli

  • http://www.fotosearch.com/video-footage/time-lapse-flower_2.html


6 respond to stimulus

6. Respond to stimulus

  • Stimulus- signal to which an organism responds

    • Response-(what they do because of the signal)

  • Internal stimulus- ex.) sugar levels drop? …then you feel hungry

  • External: ex.) flower leans toward the window in a classroom


Practice stimulus and response

Practice Stimulus and Response

  • My niece kicked me in the shin and I screamed

  • I slammed the door and the class jumped

  • I turned the light on and the mouse ran under the table

  • I placed my hand on the hot stove and I yanked it back and yelped


7 maintain internal balance

7. Maintain internal balance

  • External: conditions may vary widely

  • But internal…. Should be kept constant.. This is homeostasis

  • Ex) temperature 98.6 F, water content, etc

  • Ex of how it happens?

    • Shivering/sweating

    • Thirst/feeling of fullness


Evolve over time

Evolve over time …


8 evolve over time evolution

8. Evolve over time :Evolution

  • 100,000’s of millions of years…changes can be dramatic within a species…

  • ex) pre-historic horse was the size of a Barbie doll horse


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