Homework Biology Ecology 1

 

Directions: Answer the questions below using complete sentences.

 

1) What is a population? Give an example.

 

 

 

2) What is the difference between a biotic factor and an abiotic factor?

 

 

 

3) A rock is an example of a biotic or abiotic factor? Why?

 

 

 

4) An acre of mountain land recently experienced a fire. Plants began to grow immediately after the fire. Is this an example of primary or secondary succession? Why?

 

 

 

 

5) Put these steps of the water cycle in correct order: runoff, percolation, transpiration, condensation, precipitation, evaporation

 

 

 

 

6) Below is a list of things found in an ecosystem. Identify whether they are biotic or abiotic.

 

a)     gum: _______________

b)     dirt: ________________

c)      red panda: ________________

d)     carbon dioxide: _____________

e)     human: __________________

f)        apple core: _______________

 

7) Compare a carbon sink and a carbon source. Give examples of each.

 

 

 

8) What are some common nutrients that all organisms need in order to survive?

 

 

9) Use these words in a paragraph: ecosystem, population, species.

 

 

 

 

 

 

10) Describe 2 ways carbon dioxide enters into the atmosphere.

 

 

 

 

 

11) Describe 2 ways to remove carbon from the atmosphere.

 

 

 

 

12) What 2 processes run the carbon cycle?

 

 

 

 

 

13) Write the equations for the processes that run the carbon cycle.

 

 

 

 

 

14) Who performs photosynthesis? In what organelle does this process occur?