A positive feedback loop is one that tends to amplify a process. Why would the effect of deforestation on the water cycle be considered a positive feedback loop?
A. Because deforestation leads to reduced nutrient uptake during the growing season, which results in more fertile soil.
B. Because deforestation leads to new types of habitat which leads to greater species diversity.
C. Because deforestation leads to an increase in the concentration of nutrients in run off, which then leads to eutrophication.
D. Because deforestation leads to a decrease in precipitation, which results in further loss of vegetation.
Answer: D
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A. Only cellular respiration is happening, carried out by both the algae and the fish B. Only photosynthesis is happening, carried out by the algae C. Both photosynthesis (carried out by the algae) and cellular respiration (carried out by the fish) are happening D. Both photosynthesis (carried out by the algae) and cellular respiration (carried out by both the algae and the fish) are happening
Which kingdom contains "extremophiles"?
a. eubacteria b. archaebacteria c. fungi d. protista
All of the following are early tongue structures, EXCEPT
A. Copula B. Epiglottal Swelling C. Lateral Swelling D. Medial Swelling (Tuberculum Impar) E. Foramen Cecum
Which of the following fruits is a compound fleshy fruit?
A. pineapple B. blackberry C. peach D. tomato E. All of these are compound fleshy fruits.