Using Figure 2.2, match the following:
1) Deoxyribose sugar.
2) Thymine.
3) Guanine.
4) Phosphate.
5) Hydrogen bonds.
1) B
2) D
3) E
4) C
5) A
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What part of a spermatozoon contains the nuclear material?
A. Flagellum B. Tail C. Midpiece D. Acrosome cap E. Head
The average lifespan of a red blood cell is
A) 24 hours. B) 1 month. C) 4 months. D) about 1 year. E) many years.
Which tissue is best suited for exchange of gases between the blood and the body's tissues?
A) Pseudo-stratified columnar epithelium B) Transitional epithelium C) Simple cuboidal epithelium D) Simple squamous epithelium
Which of the following would not lead to polycythemia?
A. Excessive aerobic exercise B. Iron deficiency C. Dehydration D. Emphysema E. Cancer of the erythropoietic line of the red bone marrow