1.
What is the biosphere?
2.
What is Ecology?
3.
What are the levels of organization in the biosphere, in order from smallest to largest?
4.
What is an ecosystem?
5.
Where does the energy on Earth come from? _____________________________________.
6.
What is an autotroph?
7.
Give an example of an autotroph. ________________________________.
8.
What is a heterotroph?
9.
Give an example of a heterotroph. _______________________________.
10.
What are the 4 types of heterotrophs? Give an example of each one. a) __________________________________________________________________________ b) __________________________________________________________________________ c) __________________________________________________________________________ d) __________________________________________________________________________
11.
Autotrophs are also known as _________________________.
12.
Heterotrophs are also known as ________________________.
13.
What are the 10 major biomes and 1 characteristic of each?
(refer to your homework questions from textbook page 105)
14.
What is the MAJOR difference between chemosynthesis and photosynthesis?
15.
What is one similarity about chemosynthesis and photosynthesis?
16.
How does energy flow through an ecosystem? (page 69)
17.
What is a food chain?
18.
What ALWAYS starts a food chain? (not sunlight) ________________________________________.
19.
What is a trophic level?
20.
What trophic level has the most energy in it? ___________________________________.
21.
Several food chains put together make up a ____________________________________.
22.
What is the 10% rule?
23.
According to the 10% rule, what trophic level do humans want to be in to gain the most energy they can?
_____________________________________.

24.
What is biomass?
25.
What is an example of biomass? ___________________________________________.
Pages 90-93
26.
What is competition?
27.
The competitive Exclusion Principle states that
________________________________________________________________________.
28.
What is predation? Give an example of predation.
29.
What is Symbiosis?
30.
What are the 3 types of symbiosis? a) ____________________________________ b) ____________________________________ c) ____________________________________
31.
Give one example of each type of symbiosis.
32.
What is a Niche?
33.
Can 2 species share the same niche in one ecosystem? Why?
34.
Why are both biotic and abiotic factors important in an ecosystem? (page90)
35.
List 3 examples of abiotic factors. (other than rocks and dirt) a) __________________________________________ b) ___________________________________________ c) ____________________________________________
36.
List 3 examples of biotic factors. a) ___________________________________________ b) ___________________________________________ c) ___________________________________________
Essay’s (Choose
TWO ) 5-10 sentences.
1.
Consider a food web in which snakes eat mice, toads eat beetles; owls eat mice and toads; eagles eat rabbits, snakes and owls; cougars eat deer; and foxes eat rabbits and mice. What animal can be found in more than one trophic level?
2.
What are the 3 types of symbiotic relationships describe what each one is and how are they similar to each other?
How are they different?
3.
How is an organism’s niche determined?