Cardiovascular disease is strongly related to which of these dietary factors?
A. Protein imbalances
B. Vitamin deficiencies
C. High salt and fat intake
D. Excessive calorie consumption
E. A lack of cruciferous vegetables
Answer: C
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Which type of fertilizer has the greatest potential to contaminate streams?
A. granular commercial fertilizer B. manure C. slow-release fertilizer D. composted vegetable scraps
Researchers were studying a population of birds on Daphne Major, one of the Galápagos Islands. A drought caused many plants on the island to die. There were few seeds left for the birds to eat. Small seeds, which were easy to eat, disappeared quickly. Larger seeds remained available. Birds with thicker beaks were better able to crack and eat these larger seeds. Which of the following statements about the population on Daphne Major is TRUE?
A. Birds with thick beaks are more likely to survive during the drought. B. Birds with thin beaks are more likely to survive during the drought. C. Birds with thin beaks and birds with thick beaks are equally likely to survive during the drought. D. It is impossible to tell from the information provided.
The mass extinction at the end of the Ordovician set the stage for:a
more species to go extinct. b. groups of organisms to diversify. c. groups of organisms to withdraw from previous habitats. d. groups of organisms to repopulate abandoned niches. e. groups of organisms to diversify AND to repopulate abandoned niches.
Define "pressure," "stress," and "strain." How do they relate to one another?
What will be an ideal response?