1.a population of snails on an island is disrupted during a violent storm. portions of the population are carried by the storm surge to two new islands, while a portion remains on the original island creating three separate populations. conditions on one of the new island are exactly like conditions on the original island. however, snails that landed on the second new island encounter a voracious new predators. what is likely to happen to these three populations?

a. speciation will occur at the same rate in all three snail populations
b. speciation will occur at the same rate in the snails that landed on new islands but not in the orginal snail populations
c. speciation will rapidly occur in one of the snail populations that landed on new islands but not in the other two snail population***
d. speciation will occur in the original snail population but will not occur in the population but will not occur in the populations that landed on new islands

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3 answers

I agree.

thanks

Based on the given scenario, the most likely outcome for these three snail populations is that speciation will rapidly occur in one of the snail populations that landed on the second new island (with the voracious predator), but not in the other two snail populations.

Speciation refers to the process by which new species are formed. It occurs when populations of the same species become genetically distinct from each other due to various factors such as geographic isolation, environmental changes, or natural selection acting differently on different populations.

In this case, the snails that were carried by the storm surge and landed on the first new island and the original island are subjected to similar conditions. Therefore, they are likely to experience natural selection and genetic changes at a similar rate, leading to less probability of speciation occurring at significantly different rates in these two populations. This rules out options (a) and (d) since speciation would not occur at the same rate in all three populations, nor would it only occur in the original snail population.

However, the snails that landed on the second new island face a different scenario as they encounter a voracious new predator. This environmental pressure can lead to differential survival and reproduction of snails with certain traits that enable them to better evade or resist the predator. Over time, this could result in the development of distinct genetic characteristics and adaptations specific to the second new island population. Therefore, option (c) is the most likely outcome, as speciation would rapidly occur in one of the snail populations that landed on the second new island (with the predator), but not in the other two populations.