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Embed code for: Unit 2 Ecology Combined Notes
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Tuesday, Sept. 6, 2016
I can analyze the flow of matter and energy through trophic levels
PSR Quiz #1
Ecology PSR #1
Quickwrite: (choose one)
Describe one environmental change that is present now that wasn’t that common 30 years ago.
Do you think humans are harming or benefitting the ecosystem here in Burleson, TX? Explain.
Food Chains, Food Webs and Energy Pyramids
Use the chart that looks like the one below
What is a producer?
Organism that can make its own food (Autotroph)
Plants (trees, grass, corn, fern)
What is a primary consumer?
Herbivore - eats plants
Heterotroph – can't make its own food
Mouse, squirrel, grasshopper, hummingbird
What is a secondary consumer?
Omnivore - eats plants and animals
Heterotroph - can't make its own food
Bear, raccoon, fox, human
What is a tertiary consumer?
Carnivore - eats meat only
Lion, Shark, Alligator, Snake, Hawk
What is a decomposer?
Breaks down decaying material
Fungi, Bacteria, Insects
Use the terms from the list below to correctly describe the organism shown
Use the T-chart like the one below
We will be taking some short T-notes.
There will be 6 total questions and answers
Do the producers have to be drawn on the bottom?
No, food chains can be drawn in any direction (as long as arrows point correctly)
2. Does it matter which way the arrows point?
2. YES! Arrows show the direction of energy flow and point to the one getting the energy (Consumer)
3. Why do we need to use food webs instead of simple food chains?
3. Organisms eat more than one thing. Shows relationships and options within the ecosystem.
4. How are food webs & ecosystems organized?
Smallest to Largest, Simple to Complex
Organism Population Community Ecosystem Biome Biosphere
5. Not often! 90% of the energy from each level is lost as heat. Only 10% gets passed on.
5. Can there be more than 4 organisms in a food chain?
6. Energy Pyramid – Each box gets smaller. Organisms with the most energy are put in biggest box.
6. How do we show this change in energy?
Put the names in the correct box…
7. Pyramid of Numbers – Shows the number of individuals at each trophic level
7. What other pyramids are there?
7. Pyramid of Biomass – Shows the total mass/weight of each trophic level
What other pyramids are there?
You’re going to make an ecological pyramid of your own……
Wednesday, Sept. 7, 2016
Does it matter which way the arrows point in a food web? Explain!
In the food web to the right, which organisms are the producers? How can you tell?
List as many of the following as you can
Think, Pair, Share
Share your list with your partner
Add 1 of their examples for each term to your list
Share your lists with your group of 4
Making a Class Food Web
You will be given an organism. DO NOT LOOK AT THE NAME.
Your goal is to play 20 questions to determine as much as you can about your organism. YOU MAY ONLY ASK YES/NO QUESTIONS
Once you think you have narrowed it down, create a food chain with 3 other classmates in your journal. (Have a seat with your food chain members)
Place your food chain into an energy pyramid in your journal
Must be a Yes or No question
Cannot ask the same person more than two questions
Class Share Out
Each group will share their food chain
In your journal, create a food web based on these class food chains
Tic Tac Know
Tic Tac Know Example
Thursday, Sept. 8, 2016
I can collaborate with a group to plan an inquiry project
Friday, Sept. 9, 2016
I can describe the role of my endangered species on the world
PSR Quiz #1
Copy PSR words #2
Inquiry project continued…..
Ecology PSR #2
Academic Bio: Notes in Symbiosis foldable
Pre-AP: Symbiosis foldable & speed dating
Monday, Sept. 12, 2016
I can describe and explain the relationship between organisms
Describe a positive relationship in your life. Explain what makes it a good relationship.
Describe a negative relationship in your life. Explain what makes it a bad relationship.
Symbiotic & Non-symbiotic
Symbiosis - relationship in which two species live closely together
Ecology - scientific study of interactions of organisms and their environment.
Mutualism (+,+) both of organisms benefit from the relationship.
Example: Remoras clean sharks. The remoras get food and protection. The sharks get clean.
Clownfish gets a home, sea anemone gets cleaned
One organism benefits, the other is not affected.
Example: Spanish Moss grows on trees. The moss gets food and a place to live. The tree gets nothing.
Barnacles grow on whales getting a place to live. The whale is not helped nor harmed.
One organism benefits, the other is harmed (the host).
Parasites may weaken, but usually don’t immediately kill their host.
Example: Tick on a dog
The next 2 relationships are NOT symbiosis but they are still important…
One organism kills/eats another
Predator does the capturing and eating
Prey gets caught/eaten
Organisms of the same or different species attempt to use a resource in the same place at the same time
Competitive exclusion principle – no two species can occupy the same niche in the same habitat at the same time.
Decide as a group…
What is going on in this picture?
A gopher snake uses an abandoned rodent hole.
Tuesday, Sep. 13, 2016
I can analyze the causes and effects of ecological succession
Vocab Quiz - Wednesday
Ecological Succession in foldable
Ecological succession: a series of predictable changes that occurs in a community over time.
As an ecosystem ages, older inhabitants gradually die out and new organisms move in.
Occurs on bare rock surfaces
First species to live in an area of primary succession are called pioneer species. Plants only!
Organisms & weathering break down rock to form the foundation for soil.
Pioneer plant species and weathering increase soil quality and quantity
Pioneer species are replaced by shrubs and trees
Heterotrophs appear, with herbivores coming 1st
Secondary succession can also start if a disaster/event destroys a community without damaging soil
Stable community is self-sustaining and mature, unless a disturbance occurs.
Forests replace other plant species as the dominant plant type
Stages of succession
Put the pictures in order
In your Notebook on the Next page
You will be handed a sheet with pictures and descriptions.
Cut out the pictures and descriptions.
3. In your notebook, you will arrange them in order and match the picture with description.
4. Have your teacher check your work before you glue them into your notebook.
Succession Manipulative Questions
Explain what will happen to the black bass and blue gill as the floor of the pond fills in with organic debris?
Golden shiner and mud minnows lay their eggs on Chara. Explain which pond you would find them.
Some amphibians and crayfish can withstand periods of dryness by burying themselves in mud. In which pond would they survive?
Dragonfly nymphs spend their early stages clinging to submerged plants. Then, they climb to the surface, shed their skins and fly away as dragonflies. Explain which pond is best suited for dragonflies.
Some mussels require a sandy bottom in order to maintain an upright position. In which pond will they die out?
Wednesday, Sep. 14, 2016
I can describe the stages of ecological succession
Aca Bio- Ecological Worksheet….
Pre-AP- Pogil Worksheet…
Thursday, Sep. 15, 2016
I can analyze the flow of matter through the biogeochemical cycles
Biogeochemical Cycles: Warm-up
Using your PSR words, what does “Biogeochemical” mean?
Name a cycle that pertains to “biogeochemical”.
Matter, unlike energy, is recycled within and between ecosystems.
Matter is passed from one organism to another and from one part of the biosphere to another through biogeochemical cycles.
The Water Cycle
While watching the BrainPop Video, answer the questions in your note handout…
http://www.brainpop.com/science/earthsystem/watercycle/ | Water Cycle
Think Write Pair Share
One partner writes how humans are damaging the water cycle. (complete sentence, no talking) Other partner writes how humans are helping the water cycle. (complete sentence, no talking)
Discuss with your partner and add new ideas to your writing.
Decide with your partner which side the two of you are on, damaging or helping the water cycle.
Where does all the water in rain come from?
What is evaporation?
Change of water from liquid to gas
Why is water such an important part of the ecosystem?
All living things need water to survive
What is precipitation?
Water condenses from gas to liquid and falls back to earth (rain, snow, sleet, hail)
What is infiltration?
Process of water getting into the ground to form groundwater
Plants also play a very important role in the water cycle
Transpiration: the process when water evaporates from the plant leaf.
A. Precipitation over land
Precipitation over water
E. Surface Runoff
D. Seepage from ground
The Carbon Cycle
http://www.brainpop.com/science/earthsystem/carboncycle/ | Carbon Cycle
How is photosynthesis involved in the carbon cycle?
Plants need carbon dioxide from atmosphere to make sugar
What is a carbon sink?
Plants and the ocean take more carbon out of the air than they put back in
How are fossil fuels involved in the carbon cycle?
Fossil fuels are burned in factories which has drastically increased the amount of carbon in atmosphere
How do humans negatively impact the carbon cycle?
Burning fossil fuels & deforestation global warming
O. Forest Fire
D/G. Respiration in plants & animals
M/L: Burning of Fossil Fuels
The Nitrogen Cycle
http://www.brainpop.com/science/earthsystem/nitrogencycle/ | Nitrogen Cycle
Why is nitrogen important?
Makes up DNA and proteins
Can we breath in nitrogen? Where do we get it from?
No, we have to get it from food
How are bacteria involved in the nitrogen cycle?
Nitrogen Fixation: Bacteria fixes N2 gas into usable form for cells
De-nitrification: bacteria converts nitrogen compounds into N2 gas
How do humans impact the nitrogen cycle?
Fertilizers, smoke, waste from factories, farm animals leads to loss of oxygen, poor soil, acid rain
B. Nitrogen Fixation
J. Consumption by Animals
D. Nitrogen Fixing Bacteria
Sum it Up
Write a half page about how human are negatively impacting the biogeochemical cycles and possible solutions
Friday, Sep. 16, 2016
PSR #2 Quiz
I can devise a conservation plan for my endangered species (inquiry Project)….
Mon, Sep. 19, 2016
I can describe the flow of matter through the Carbon cycle
Turn in inquiry project….
Carbon passport activity…
Half page Carbon atom narrative…
Tuesday, Sep. 20, 2016
I can analyze factors of population growth
Number of individuals per unit area of the same species
What is a population?
Immigration, or movement of individuals into an area
2. How can populations grow?
Carrying capacity: the number of species an environment can support
3. What things limit growth?
4. Depends on number of individuals disease, predation, competition, & parasitism
4. What are density dependent limiting factors?
5. Does not depend on population size weather, climate, natural disasters, & human activities
5. What is a density independent limiting factor?
emigration- movement of individuals out of an area
6. How can populations decrease in size?
Carrying capacity worksheet…
Peer Review Inquiry Project…
Wednesday, Sep. 21, 2016
I can identify factors that cause population changes
Vocab & Notes Quiz tomorrow!
Unit test Friday!
Bear-ly Enough Lab
We will be doing an activity to simulate carrying capacity
You will pretend you are a bear, and you will be foraging for food.
What do I do?
1. You are a bear
2. Food will be spread around the foraging area (back of room)
3. Bears collect ONE piece of food at a time and bring it back to their den (your seat and baggie)
4. In order to survive, you must collect 80 pounds of food
5. Count your food and record your data
6. Three trials
Three "special" bears - volunteers?
Record your data
Why would a parent bear eat before feeding their babies?
What happened to the 3 special bears?
What techniques were used by bears to find enough food?
Was the carrying capacity enough to support the entire bear population?
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Login: amsaah PW: amsscience06
Login: amsaah PW: amsscience06sil fuels involved in the carbon cycle?
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