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- Consider the 4 lines of data to be from the life tables of various species. Each one represents a different age class, and they report values for lx, dx, qx, and bx. Again, they are from different species. Which of the 4 choices would you say belongs to the species with the most intense age specific mortality? Group of answer choices l4 = 711, d4 = 211, q4 = 0.723, b4 = 0.98 l1 = 549, d1 = 242, q1 = 0.613, b1 = 0.08 l2 = 267, d2 = 199, q2 = 0.214, b2 = 1.28 l3 = 915, d3 = 377, q3 = 0.357, b3 = 2.90If the phylogenetic species concept (PSC) were used to define species, rather than the biological species concept (BSC), how might that change the estimates of species diversity (numbers of species) on a worldwide basis? True or False: Estimates of species diversity are likely to change if the PSC is used. In particular, one would expect the number of species to increase. This is because individuals from divergent allopatric populations that can potentially interbreed would belong to the same species under the BSC. These same organisms would be classified as members of different species under the PSC.What is the difference between microevolution and macroevolution? Macroevolution occurs on a smaller scale with only one species. Microevolution occurs on a larger scale and includes several different species changing at once. Microevolution occurs when there is a change within a population of a given species. Macroevolution occurs when one species changes into a completely new species. Macroevolution occurs when there is a change within a population of a given species. Microevolution occurs when one species changes into a completely new species. Microevolution occurs on a smaller scale with only one species. Macroevolution occurs on a larger scale and includes several different species changing at once.
- What is the process in which two closely interacting species jointly act as selective agents of traits for each other? Coevolution Adaptive radiation Microevolution MacroevolutionA founder population of interesting creatures is established, and the average probability of identity by descent is calculated for each subsequent generation as follows: Generation F 1 0.05 2 0.0975 3 0.142625 4 0.2283625 a) What are the effective population sizes Ne for each Generation 1 through 4, relative to Generation 0 (the founder population)? b) What is the effective population size of Generation 4 relative to Generation 3? c) Is there any evidence for changes in population size after the founder event, and if so, at which generation did the size change in the number of breeding individuals occur?Through the human introduction of invasive species and forced migration of various species such as pack mules, elk, and hog-nosed skunks into the Kaibab squirrels’ habitat, scientists hypothesize two outcomes that might occur to the squirrel population. Examine the following null hypotheses formulated to explain rates of speciation and extinction of the Kaibab squirrel population as an influx of species continues to migrate into their niche. Null Hypothesis: The rate of speciation (C) remains steady when species compete for available resources while all will continue toward extinction (B). Which of the following graphically depicts the alternative hypotheses?
- The following is a matching question, below is text interepreted.Match each term to the best definition or description. ResiliencySpecies richnessBiodiversityGamma diversity words to match it with: number of species in an environment, considers number of habitats and total species number among them, combination of species richness and species eveness, same as species eveness, high probability of recovery to original state, high probability of disruption.If you do not understand the text based question, use the image below.Which of the following species would have the greatest chance of going extinct? a species with a slow reproduction rate and very little genetic variation living in a changing environment a species with a fast reproduction rate and lots of genetic variation living in a changing environment a species with a slow reproduction rate and very little genetic variation living in a stable environment a species with a fast reproduction rate and lots of genetic variation living in a stable environmentYou arrive on an alien planet and settle down to live there for a long time. There are very few species. Two of the species (A and B) are sometimes common and sometimes rare. When you start keeping track of population changes you discover that the population sizes fluctuate on a regular cycle in close synchrony. Species B always increases first, followed by species A. Which of the following would be the best explanation for what you are seeing? Group of answer choices -Species A is a predator and there is a time lag between changes in the density of its prey and species A's population change -Species A is a predator and it can respond instantly to changes in its prey population -Species B is a predator and there is a time lag between changes in the density of its prey and species B's population change -Species B is a predator and it can respond instantly to changes in its prey population
- Which of the following statements is false? a. Gradual speciation is most likely to occur in a large population that lives in a stable climate. b. Punctuated equilibrium is unlikely to occur in a large population that lives in a stable climate. c. Gradual speciation and punctuated equilibrium both result in the divergence of species. d. Gradual speciation is most likely to occur in a small population that experiences a rapid change in its environment.Try to outline a scenario explaining the evolution of the three species shown in panel g. Use migration, mutation, genetic drift, selection, reproductive isolation, gene flow, extinction, and many generations in your scenario. Based on your scenario, what are the components that are necessary in a population in order for it to split or diverge into two new daughter species from a single ancestor (the parent species)?The following text has six gaps, which are indicated by The Roman numerals (I, II, III, IV, V, VI). Fill in these gaps by correctly matching the appropriate words/terms.Namaqualand daisies don't have populations with ___________ (I) generations. The species is regarded as a/n _________ (II) strategist, and individuals produce __________ (III) numbers of offspring that have a relatively ________ (IV) size. The probability of an individual not surviving to middle-age is relatively ___________ (V), and the age-specific survival rate of young individuals is relatively ___________ (VI). A. overlapping B. large C. small D. high E. r F. low 1. I 2. II 3. III 4. IV 5. V 6. VI