Sustainable Ecosystems
Cycles
Biodiversity
P & CR
Food webs and chains
100
What does sustainable mean?
When something can last for generations.
100
Name one biogeochemical cycle.
Nitrogen, Carbon, Water
100
what is a Population?
all the individuals of one species (in one area)
100
Who does photosynthesis?
Plants
100
What is the primary source of energy for living things on Earth?
the sun
200
What is a sustainable ecosystem?
The ability to maintain ecological balance.
200
Explain why the three cycles we talked about are important to life on Earth. (hint: Why is it important for matter to continuously cycle?)
-Matter is not created or destroyed so it has to cycle in different forms to sustain life.
-What we have is what we got
200
What is an ecological niche?
The "job" a species has in its ecosystem.
- what the species eats and how it behaves
200
Who does cellular respiration?
all living things
200
What is generally found on the first trophic level?
producers-plants
300
What is an ecosystem?
all of the biotic and abiotic components that interact in a certain area.
300
Name one thing humans can do to impact the carbon cycle
- burn fossil fuels
-cut down trees
300
When considering the biodiversity of an ecosystem what are the three different diversities you have to consider?
1. genetic diversity (one species)
2. species diversity (many species)
3. ecosystem diversity (different habitats)
300
What is the overall goal of photosynthesis?
water + carbon dioxide and make sugar + oxygen
- use the sunlight energy and chlorophyll to do this
300
what do living organisms use their energy on to survive day-to-day life?
-growth, cell repair, immunity, reproduction,
400
How is biodiversity related to sustainable ecosystems?
- biodiversity supports the health and resilience of ecosystems
-Maintaining biodiversity is essential for ensuring the long term health and sustainability of ecosystems
400
Name one biogeochemical cycle and one place that it can be found on Earth.
Nitrogen-- soil, lakes, air, fertilizers
Carbon--carbon dioxide- in the atmosphere or a part of photosynthesis
Water-- precipitation- rain
400
What services might biodiversity provide humans?
- pollination
-pest control
- food/water
- medicine
-stable ecosystems - more resilience
400
What is the overall goal of cellular respiration?
-to take sugar + oxygen to make carbon dioxide + water + energy
400
As you move up the energy pyramid what happens?
- less energy available
-fewer number of organisms
500
What is something you can do as an individual to contribute to ecosystem sustainability?
- do not liter
- carpool
- care for plants
- take care of wildlife
etc.
500
Explain how photosynthesis is a part of the carbon cycle.
- takes in carbon dioxide from the atmosphere and uses it to make sugar and oxygen.
- Plants store carbon in leaves, stems roots
500
Name 2 causes of biodiversity loss. AND What do they have in common?
-pollution, habitat loss, overexploitation, invasive species, climate change
- all human caused
500
How are photosynthesis and cellular respiration connected?
- complementary processes
- Photosynthesis products = CR reactants
500
If the producer at the bottom of the energy pyramid has 2000 Joules of energy, how much is passed to the primary consumer?
- 10% of 2000J
- the primary consumer will only get 200 Joules of that energy