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MasteringBiologys Last Unit Homework Ch 22-27-Google Chrome Secure https://sessi

ID: 258013 • Letter: M

Question

MasteringBiologys Last Unit Homework Ch 22-27-Google Chrome Secure https://session.masteringbiology.com/myct/itemView?assignmentProblemiD-112489888 Last Unit Homework Ch 22-27 Grants in the Galápagos: Selection on Phenotypic Traits 10 of 182 Part D - How do the bird populations respond to competition? Daphne can be a hard place to live. Because the island is small, resources can be limited. Shifts in population numbers and morphology occurred when G. magnirostris colonized the island, and again when the Big Bird colonized Daphne and bred. Watch the video to see what changes came about after G. magnirostris colonized the island. What would happen if another species came to the island? Given what you know about the birds on Daphne, predict what would happen to the native species with each type of colonizing finch. Assume that the colonizing bird is superior to the native birds at foraging. Reset Help O Type here to search 5:03 PM 4/13/2018

Explanation / Answer

Small native birds starve so only larger natives pass on their genes

Native birds starve

The native species goes extinct on the Island

Native birds with genes for larger beaks starve

Getting larger over generations

The native species begins to overlap somewhat with Big birds in morphological space

Getting smaller over generations

Population number drops

The native species begins to overlap somewhat with Big birds in morphological space

Small native birds starve so only larger natives pass on their genes

Native birds starve

The native species goes extinct on the Island

Native birds with genes for larger beaks starve

Getting larger over generations

The native species begins to overlap somewhat with Big birds in morphological space

Getting smaller over generations

Population number drops

The native species begins to overlap somewhat with Big birds in morphological space