Question 1.Biological species diversity involves a number of complex concepts. Which term refers to the relative abundance of a species within an ecosystem?
- Species evenness
- Species richness
- Species dominance
- Species habitat
- None of the above
Question 2.Predation occurs when one organism feeds on another. In regards to diversity, predation can lead to which of the following outcomes?
- Increase in diversity of the prey species
- Increase in the species richness of the prey species
- Increase in the habitat diversity
- Both a & b
- All of the above (a, b, & c)
Question 3.The ease of long distance travel has led to huge introductions of invasive species, or species introduced into regions where they are not naturally found. According to your text, the majority of invasive pests are being imported from what region of the world?
- Middle East
- Australia
- Central and South America
- Europe
- None of the above
Question 4.Your text provides a number of reasons why humans should value biodiversity. Which of the following statements best describes the utilitarian primary value?
- Species provide beauty.
- Species provide a product that is of direct value to people.
- Species have a right to exist.
- Species have roles in their ecosystems, many of which are necessary for the persistence of these ecosystems.
- None of the above
Question 5.Question :The competitive exclusion principle states that two species with exactly the same requirements cannot coexist. Based on this principle, within any given area, we would expect to see the survival of just a few select species, however, this is obviously not the case. What principle best explains why more than a few species can exist within a given area?
- Shared predation
- Varied ecological niches
- Biological disease
- Symbiosis
- All of the above
Question 6.Geography can significantly affect species diversity. Which of the following statements is true regarding the effects of geography on diversity?
- Diversity rarely varies from location to location.
- Greater diversity occurs at higher latitudes.
- Soil type has little to no affect on diversity.
- Development of cities increases biodiversity.
- None of the above
Question 7.Biological evolution refers to the change in inherited characteristics of a population from generation to generation and is characterized by four key processes including natural selection. Which of the following is nota primary factor in natural selection?
- Genetic variability
- Environmental variability
- Species variability
- Differential reproduction
- All of the above are primary factors
Question 8.Biological diversity of island ecosystems is unique. Which of the following is/are characteristic(s) of island diversity?
- Islands tend to have greater species diversity than continents.
- The two sources of new species on islands are migration from the mainland and evolution.
- Larger islands tend to have fewer species than smaller islands.
- Distance from the mainland has no effect on species diversity.
- All of the above
Question 9.There are a variety of ways in which a species may evolve from their parent species. Based on the following scenario, what method of evolution is described?
i. Species A regularly moves between two locations in a valley.
ii. A manmade canal is constructed to allow boats to travel through the valley that isolates a small population of species A from the rest of the population.
iii. Over time, the smaller population evolves into species B.
- Founder effect
- Infiltration effect
- Migration
- Natural selection
- None of the above
Question 10.Divergent evolution occurs when a population is divided by geographic barriers resulting in the evolution to two separate species. Which of the following is/are true of the two resulting populations?
- Both groups will evolve in a similar manner since they share a common ancestry.
- Groups will retain some similar characteristics.
- One population will evolve traits that allow it to reach its parent population.
- Both a & c
- All of the above (a, b, & c)