Which of the following is transmitted by the fecal-oral route?
A. Entamoeba histolytica
B. Plasmodium
C. Schistosoma
D. Trichomonas
E. Schistosoma and Trichomonas
Answer: A
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A mutation in one gene that compensates for a mutation in another gene to result in the wild-type phenotype is called an intergenic suppressor mutation
Indicate whether the statement is true or false
Assimilation efficiency is the ratio of ____
a. energy content of food consumed to the energy content of food available b. energy absorbed from consumed food to the food’s total energy content c. energy content of new tissue produced to the energy assimilated from food d. net productivity at one trophic level to the trophic level below e. producers to consumers
How many genes are involved in determining skin color?
a. 1 b. 2 c. 10 d. 20 e. more than 100
In a severe allergic reaction, a person's tongue can swell up, effectively blocking the air passageways. An emergency procedure can be performed to restore airflow. Basically, a hole is cut into the passageways below the blockage to allow air to flow
into the lungs. What passageway would be best for the surgical hole? What will be an ideal response?