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Life Sciences Test Bank
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Life Sciences Test Bank
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25 Questions

1. One day, you wake up with a sore throat and a runny nose. You doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that an antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
2. As the result of glycolysis, the three-carbon molecule formed is
3. Keratin, a protein, is the major constituent of
4. Greater surface for food absorption is provided in the earthworm by
5. The sense of balance is maintained with the help of the
6. Consider the following statements: 1. Point mutation is a process by which new alleles of a gene are produced. 2. Ultraviolet rays are a strongly ionizing radiation. Which of the abovementioned statements is/are correct?
7. Calcium dependent kinases can control
8. Vertically elongated cells in the lateral meristem producing axial system in the secondary xylem phloem are known as
9. Endocytosis is a process whereby a cell
10. A drug obtained from the bark of a tree is
11. Which of the following diseases is not water borne?
12. The euglena is different from the amoeba and paramecium in possessing
13. At the time of implantation, the human embryo is called a(n)
14. Spindle threads are attached to the chromosomes at the
15. Human blood has the highest percentage of
16. In practicing selection among plants, the breeder carries on
17. With respect to the process of aerobic respiration, which statement is correct?
18. A zygote is a cell that
19. Atmospheric nitrogen in soil is fixed by
20. The gland that contains the body's thermostat is the
21. Typhoid and cholera are typical examples of
22. Chlorophyll can be extracted from a leaf by
23. The di ploid number is restored as a result of
24. A serious viral infection is transmitted from many wild and domesticated animals, including dogs to man. The disease is known as
25. ATP is used directly in the process of

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