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Life Science Test 2
1.) Place a B next to items that are biotic and an A next to items that are abiotic. (6 pt)
_____1. dog _____2. an orange _____3. rock
_____4. water _____5. air _____6. hair
2.) When looking at ecosytems, you are looking at all living organisms interacting with their _______________________________. (1 pt)
3.) What is meant when an animal has an adaptation? Please give an example of a physical and behavioral adaptation. Justify your answer. (4 pts.)______________________________________________
_______________________________________________________________________________________________________________________ R_________________________________________________________________________________________
4.) _________________________ is the process why which a producer (plant) takes sunlight and turns it into food. (1pt)
5.) What gas do plants require to complete their food making process? (1 pt) ______________________
6.) What are the two waste products that plants give off after they make their food? (2 pts) _________________________________
7.) A _______________ ________________ is a transfer of energy from one organism to another. (1 pt)
8.) First order consumers will be either ______________________ or ________________________. (2 pts)
9.) What is the difference between a food chain and a food web? (2 pts)_____________________________________________________________________________________________________________________________________ ____________________
10.) What type of consumer are we considered and why? __________
________________________________________________________________________________________________________ (2 pts)
11.) What is the role of decomposers in food chain? _____________
____________________________________________________ (2pts)
12.) Create a food chain with at least five links in it. (5 pts)
13.) Why is the Sun so important to life on Earth? Give at least 3 reasons and support them. (6 pts.)
1. _________________________________________________
____________________________________________________
2._________________________________________________
____________________________________________________
3. ________________ _________________________________
____________________________________________________
14.) In the Water Cycle, explain the different phases water changes into. Give the scientific terms and explain them. Also give at least 3 forms in which water can fall from the sky. (7 pts)
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
15.) ____________________ changes some nitrogen gas into nitrogen compounds. These compounds are washed to the Earth by rain. (1pt)
16.) Nitrogen is made usable by bacteria N that grows on the_________ of plants such as _____________ and ___________. (3pts)
17.) Describe what is meant by the predator - prey relationship. Give one example of predator -prey relationship. (Not Bob and Crickets) (3 pts) ________________________________________________________________________________________________________________________________________________________________________________________________________________
18.) A long lasting relationship between two organisms is called ____________________. (1 pt)
19.) Identify any variable in the following experiment and support how it could alter testing results.
A student is trying to help a plant grow as quickly as possible. He buys two identical plants and places them on the same window sill. They receive the same amount of sunlight and the same amount of wa ter. The student charts their growth for two weeks. On the third week, he began to give plant #2 spring water instead of water from the faucet. He continued to chart the growth of both plants. After 6 weeks, he noticed both plants were still about the same height.
What was the variable in the experiment? What conclusion did the student come up with from this experiment? (4 pts)
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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