1. Locally adapted and genetically distinctive populations within a species are referred to as: (Points: 5)
2. Within a population, if the average is selected for and the two opposing extremes are selected against, this is an example of: (Points: 5)
3. Over time, average phenotypes become less common and the population becomes phenotypically more diverse as a result of __________ selection. (Points: 5)
4. Molecular biology has helped scientists examine the genetics and evolution of different species. Which of the following sequences is correctly ordered? (Points: 5)
Restriction fragments, restriction enzymes, PCR, electrophoresis
PCR, restriction enzymes, restriction fragments, electrophoresis
Restriction enzymes, PCR, electrophoresis, restriction fragments
PCR, electrophoresis, restriction enzymes, restriction fragments
5. All of the following conditions are included in the Hardy–Weinberg equilibrium principle except: (Points: 5)
large population size.
6. __________ is/are defined as a group of potentially breeding organisms within a species in a given space and time. (Points: 5)
7. Whittaker's research on North American tree distribution examined __________ gradients and concluded that the tree distribution was __________. (Points: 5)
8. In order to determine whether a species is common or rare, ecologists use all of the following criteria EXCEPT: (Points: 5)
local population size.
9. The rarest animal is the __________ and the rarest plant is the __________. (Points: 5)
Northern spotted owl; Pacific Yew
Siberian tiger; Asplenium septrionale
Tasmanian devil; Welwitschia
Mountain gorilla; Prichardia Monroe
10. Rarity I can be described by the following indicators: (Points: 5)
restricted range, narrow habitat tolerances, and small local populations.
restricted range, broad habitat tolerances, and large local populations.
extensive range, narrow habitat tolerances, and large local populations.
extensive range, broad habitat tolerances, and small local populations.
11. Which of the following word pairs are mismatched? (Points: 5)
Random distribution: aggressive interaction
Clumped distribution: attraction to a common source
Regular distribution: antagonistic behaviors
Large scale distribution: substantial environmental changes
12. Which of the following is mismatched? (Points: 5)
Eastern grey kangaroo: temperate and tropical forest
Western grey kangaroo: little seasonal variation in precipitation
Red kangaroo: savanna and desert
Western kangaroo: temperate woodland and shrubland
13. The Type I survivorship curve indicates: (Points: 5)
low juvenile mortality and high mortality in older adults.
high juvenile mortality and low mortality in older adults.
low juvenile mortality and low mortality in older adults.
high juvenile mortality and high mortality in older adults.
14. Humans would best be represented by which of the following survivorships curves? (Points: 5)
15. The age distribution of a population can reveal: (Points: 5)
growth potential, survivorship, and reproduction.
16. A group of subpopulations living in spatially isolated patches connected by exchange of individuals among patches is called a(n): (Points: 5)
17. Which of the following indicates a population in decline? (Points: 5)
R0= - 0.601
18. Out of 1 million eggs laid by a mackerel, more than 999,990 die during the first 70 days of life either as eggs, larvae, or juveniles. The mackerel has a __________ survivorship curve. (Points: 5)
19. Which of the following equations bests represents the per capita rate of increase? (Points: 5)
r = T/(ln R0)
r = (ln R0)/T
l = Nt/( Nt+1)
l = (Nt+1)/Nt
20. Type II survivorship curve indicates: (Points: 5)
equal chance of dying at any age.