Abiotic Factors That Affect Populations Gaiser Life Science.
Life Vocabulary: (main section) Biology - The study of life Biotic - living Abiotic - non-living ...
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Transcript of Life Vocabulary: (main section) Biology - The study of life Biotic - living Abiotic - non-living ...
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Life Vocabulary: (main section) Biology - The study of life Biotic - living Abiotic - non-living Cell - basic unit of life Sexual Reproduction - process in which genetic material from two
parents combines and produces offspring that differ genetically from either parent
Asexual Reproduction - process by which a single parent reproduces by itself
Growth - increase in size Development - The process of change that occurs during an organism's
life to produce a more complex organism. Differentiation - change in structure and function of a cell as it matures;
specialization Metabolism - all of the chemical reactions that occur within an organism Homeostasis - Process by which organisms maintain a relatively stable
internal environment Evolution - the process by which species gradually change over time Organism - A living thing --has all eight characteristics of life
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5 topics that we will cover this year
1. Introduction to science. (inquiry)
2. Life science
3. Physical Science
4. Chemistry
5. Earth Science
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What is LIFE?
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Biology
Biology – break it into root words?????
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Biology
Biology – study of life
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Is fire alive?
Leave some space, come back at the end and try to answer this.
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Six characteristics of life:
1.Composed of cells2.Living things reproduce3.Grow and develop4.Use and obtain energy5.Respond to their environment6.Homeostasis
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Scientist are sceptics
• A sceptic - someone who questions something. • fact checker, not ignoramus
• So, who decided what life is?• Is it an accurate system?• Is it possible that life is something different than what
we define it as?
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1. Living things are composed of cells All living things
have cells
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1. Living things are composed of cells All living things
have cells
Cells are never formed by non-living things
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2. Living things reproduce
All living things die, so reproduction is necessary
2 types Sexual - two cells
from different individuals unite to produce new cell (new individual)
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2. Living things reproduce
Asexual - single organism reproduces without the aid of another.
More simple - some organisms simply divide in two.
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3. Living things grow and develop All living things
are capable of growth
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4. Living things use and obtain energy
Living things obtain energy from their environment.
Different types??
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4. Living things use and obtain energy
Photosynthesis - plant energy from sun
Metabolism - energy from food
Chemosynthesis - energy from chemical sources
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5. Living things respond to their environment Can be fast (behavior), or
slow (metabolism or growth)
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5. Living things respond to their environment Can be fast (behavior), or
slow (metabolism or growth) Cause of change called
stimulus
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5. Living things respond to their environment Can be fast (behavior), or
slow (metabolism or growth) Cause of change called
stimulus Living things respond in
ways that improve chances of survival
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6. Homeostasis
The processes by which organisms respond to stimuli in ways that keep their body suitable for life
Examples in humans?
Book: Chemicals of life.
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6. Homeostasis
The processes by which organisms respond to stimuli in ways that keep their body suitable for life
Humans: warm blooded, sweat, shivering, sickness, waste excretion, etc.
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Date: Is your car alive?
Entry question; please use the 6 characteristics of life and tell me if a car is alive. Please write a good response. Defend your answer.
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Is your car alive?
1.made of cells?
2.reproduce?
3. grow and develop?
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Is your car alive?
4. Use and obtain energy?
5. Respond to their environment?
6. Homeostasis (maintain there environment)?
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Other aspects of life?
All things die
If there is time:
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Other aspects of life?
All things die
Based on DNA
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Other aspects of life?
All things die
Based on DNA
Communicate
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Other aspects of life?
All things die
Based on DNA
Communicate
Organization
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Other aspects of life?
All things die
Based on DNA
Communicate
Organization
Gas exchange
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Other aspects of life?
All things die
Based on DNA
Communicate
Organization
Gas exchange
Evolve