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Unit Test 4 Review Part I.

Test Description: Students review for their test on ecosystems, cell theory, microbiology, and biotechnology.

Instructions: Answer all questions to get your test result.

1) Why do doctors suggest that people get a flu vaccine each year?

Aviruses can mutate from year to year Bvaccines are absorbed by the body after a year Cvaccines get stronger over time Dviruses replicate more rapidly over time

2) Which of these careers would a student studying biotechnology most likely

Ageology Bastronomy Celectrical engineering Dagricultural research

3) Which interaction illustrates a terrestrial-aquatic food relationship?

Aa turtle burying eggs in the sand. Ba fish eating plankton in the ocean. Ca bear eating a fish in a river Da bird laying eggs in a nest in a tree.

4) Which best determines the number of wolves that can live in an area?

Athe number of trees in the area Bthe amount of snow in the area each year Cthe amount food available in the area Dthe number of birds that live in the area

5) What happens to a population and to competition when there is a reduction of living space?

Athe population increases as competition decreases Bthe population expands and competition intensifies Ccompetition strengthens while the population contracts Dcompetition weakens and the population decreases

6) What type of relationship exist between trees and the kudzu vines that grow on them?

Acompetition Bpredator-prey Cparasitism Dmutualism

7) Where is the largest amount energy found in a food web?

Amouse Bgrasshopper Cgrass Dhawk

8) Why is a healthy diet important?

Ait prevents damage to internal organs Bit maintains a constant body temperature Cit supplies the body's needs for growth and energy Dit makes oxygen for all the cells in the body

9) Which would best explain why a lot of people got sick after attending a school dance?

Acontact with an infected person Bcontact with an infected animal Ccontact with a contaminated object Dcontact with environmental sources

10) What is the best way to help prevent the flu from becoming a pandemic?

Awashing hands often Btaking antibiotics Cgetting a vaccination Deating fruits and vegetables

*select an answer for all questions

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