An example of an obligatory mutualism involves which two organisms?
a. acacia trees and ant colonies
b. mycorrhizae and legumes
c. cattle egrets and cattle
d. plants and herbivores
e. tapeworms and pigs
A
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Consider mumps. What is the causative agent? How is this disease spread? What happens in the body during the course of this disease? What type of immunity is conferred or used for this disease?
Why is the prevalence of mumps in developed countries generally low? What will be an ideal response?
. If the efficiency of the alveoli in an human was reduced by 50%, what would you predict would be the effect?
A. The volume of air in the lungs would decrease by 50%. B. The rate of gas exchange would decrease by 50%. C. The affinity of hemoglobin for oxygen would decrease by 50%. D. The muscular control of breathing would decrease by 50%.
What is a biome, and what principal factors influence biome types?
What will be an ideal response?
What is a challenge that organisms living in an estuary face that other aquatic organism normally do not face?
A. changes in temperature at different depths B. daily changes in salinity C. movement of water D. light penetrating only through the photic zone E. damage from pollution