With shorter necks, giraffe ancestors could not reach food-containing branches on tall trees. This resulted in the directional selection of giraffes with longer necks.
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Why is choosing a direction necessary? </h3>
It nearly appears obvious that the giraffe's long neck developed as a result of a lack of food in the lower branches of trees. The giraffe has a significant advantage because it is taller than any other mammal and can feed where few others can.
When compared to modern giraffes, the giraffe's ancient predecessors had a shorter neck. The plants that were lying at a higher level were inaccessible to them. Giraffe phenotypes have changed in various ways, and now have long necks to reach vegetation that is higher up. The extreme form is chosen above other features in directional selection. It was decided to choose the long-necked giraffe over the short-necked.
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<span>I also believe its (c) industrial and agricultural runoff, coastal infrastructure development, and dredging
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The answer is A. it belongs to a different family.
It can't be B because all the plants have different species.
It can't be C because not all plants listed are cherry trees.
Hope this helps :)
A. Nonnative species that are superior competitors
Answer:
The Acacia tree's and other small plants the elephants eat would begin to grow in terms of population. Similar to if the elaphants grew in population, the Acacia tree's would decrease in population.
