Knowing when geological events (for example, the appearance of a new island) occurred, is useful when trying to determine Blank______.Multiple choice question.the magnitude of DNA divergence between cladesthe most parsimonious phylogenythe timing of the separation of clades

How are geological events, such as the rise of a mountain, useful in cladistics?Multiple choice question.These events provide information about the timing of separation of clades.These events can be used to correct errors in cladograms caused by homoplasmies.These events can be used to infer the relatedness of species in different geographic areas.

You compare the genomes of two species and determine some very large differences. This would suggest that the two species Blank______.Multiple choice question.do not share a common ancestorare not very closely relatedare very closely related

Five sentences related to a topic are given in the question below. Four of them can be put together to form a meaningful and coherent short paragraph. Identify the odd one out. Choose its number as your answer and key it in.Remarkably, extreme events of diversification and extinction happen more frequently than a typical Gaussian distribution would predict.Throughout life's history on earth, biological diversity has gone through ebbs and flows – periods of rapid evolution and of dramatic extinctions.Evidence for these ecological changes is found throughout the early and middle Cambrian fossil record but is even more apparent in deposits of exceptional preservation.We know this, at least in part, through the fossil record of marine invertebrates left behind since the Cambrian period.Instead of the typical bell-shaped curve, the fossil record shows a fat-tailed distribution, with extreme, outlier, events occurring with higher-than-expected probability.

When using a molecular clock, the rate of DNA divergence between two clades per unit time can be determined by dividing Blank______.Multiple choice question.the length of time separating the clades by the total amount of DNA divergence between the two cladesthe number of bases in a DNA molecule by the length of time separating the cladesthe total amount of DNA divergence between the two clades by the length of time separating the clades

What could scientists infer if they found the same type of fossil in different locations? aThe locations used to be connected or were close by in the past bThe area used to be covered by water cThere was a mass extinction event dThe organism lived on Earth 2.3 million years ago