Invisible living creatures were thought to exist and cause disease long before they were ever observed.
Answer the following statement true (T) or false (F)
True
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Imagine you were the manager of a national park with cheetahs. The cheetahs feed primarily on gazelles, while the gazelles eat grass. It takes an acre of grassland to feed one gazelle, and it takes ten gazelles to feed one cheetah. How much grassland do you need to support a population of 10 cheetahs?
A. 10 acres B. 200 acres C. 500 acres D. 100 acres
Which of the following statements is true regarding the male urethral biota?
A. The urethral biota in the male is exactly the same biota as in the female urethra. B. The urethral biota is the same as the anal biota. C. There are no resident biota in the urethra. D. The urethral biota varies with sexual activity of the male.
Approximately how many olfactory receptors do humans have in their olfactory epithelium?
a. 10 million b. 100,000 c. 200 million d. 50 million e. 500,000
Which of the following structures are present in both eukaryotes and prokaryotes?
A. endoplasmic reticulum B. plasma membrane C. mitochondria D. nucleus E. Golgi body