DO NOW- Raise your hand when complete for a CLASSWORK GRADE.
1. The maximum number of a species an ecosystem can support is called ____________________________
2. What type of energy comes from the sun? ____________________________
3. What type of energy is transferred in a food web? ______________________________
4. What type of energy powers cellular activities? ______________________________
5. What type of energy powers photosynthesis? ______________________________
6. What type of energy is made in the mitochondria? ______________________________
7. Organic nutrients store what type of energy in their bonds? ______________________________
8. What is another name for light energy? ______________________________
9. What type of energy can never be transferred? ______________________________
10. What type of energy is a reactant of cellular respiration? ______________________________
11. What type of energy is a product of cellular respiration? ______________________________
12. The process of photosynthesis converts _________________ energy into ________________________ energy
13. Cellular respiration converts ________________________ energy into ___________________ energy
The change of Ecosystems Over Time:
• As a result of ___________________________(natural selection, competition, survival of the fittest), there is a
_______________________of organisms and roles in ecosystems.
• Diversity ____________________ the chance that at least some will ____________________ any environmental
changes
Biodiversity
• The_____________________ of life in an ecosystem
• The ____________________________________in an ecosystem
 Plants, animals, fungi, bacteria, etc.
 The variety of species
Biodiversity ______________________________________________of an
ecosystem.
• More types of ___________ = more _________________________
• More food chains = more ___________________________
• Greater food web = more ___________________________
Biodiversity increases the
___________________________________________an ecosystem.
• Diversity increases the chances of _________________________.
• Most of our ___________________________ are derived from chemicals that we find in nature.
• All of our _________________ is derived from the plants and animals we find in nature.
• Genetic and Biodiversity may lead to future discoveries in_________________________ and
________________________________.
• If we destroy habitats, the potential to find new crops and medicines is _________________.
How does biodiversity happen? How is it that a rich diversity of species evolves and comes to live in an
environment?
 Ecosystems do not happen overnight.
 Stability does not happen overnight.
• The growth of an ecosystem is ______________________, or ____________________. It happens slowly overtime.
• As an ecosystem grows, it becomes __________________________________.
• The growth of an ecosystem ____________________________into a stable environment is called
__________________________________________
 Succession happens ________________________.
•
Ecosystems go through a ____________________________________________.
Each organism that moves into an ecosystem ___________________________________, or changes the ecosystem and
makes it suitable for _______________________________________to live there.
• Each step of succession____________________________________________________ of an ecosystem.
• Biodiversity increases the _____________________________ of an ecosystem.
Ecological Succession:
_________________________________________
_________________________________________
_________________________________________
_________________________________________
What can disrupt a stable ecosystem?
Rapid Changes:
• ______________________________________:
– Fires, volcanoes, earthquakes, floods
• ______________________________________:
– Destroying habitats, buildings, roads
Gradual Disruptions:
 _____________________________________:
o Lake dries up, temperature changes, snow/ice
After disruptions, ecosystems can slowly build themselves back up _____________________________.