Herbivorous insects tend to be highly specialized in their use of host plants. Populations of gall wasp B. treatae inhabit two sister species of live oak, Quercus virginiana and Q. geminata, which geographically overlap in the southeastern United States. The habitat of each oak differs slightly, with Q. virginiana occurring in sites that are more moist, more nutrient rich, and have higher pH. Q. virginiana has larger, tougher leaves and earlier flowering times. How can conditions in the live oak habitats lead to speciation in gall wasps?

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Explanation:

There would be natural variation in a population of gall wasps. This would mean that some members would be at an advantage in the first kind of live oak while others in the population would have traits that provide them an advantage in the other kind of live oak. Over time, the gall wasps would become even more specialized to living in the specific live oaks. This habitat isolation would build a reproductive barrier that would allow the two gall wasp populations to become more genetically different over time. At some point, the populations will become different enough that they can no longer interbreed. At this point, they would be considered different species.

Explanation:

edge

have a great day everyone.

i don't know and i don't care .

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.