What kind of speciation has occurred in this example, and what has driven it? beetle pollinators of a particular plant are attracted to its flowers bright orange color. the beetles not only pollinate the flowers, but they mate while inside of the flowers. a mutant version of the plant with red flowers becomes more common with the passage of time. a particular variant of the beetle prefers the red flowers to the orange flowers. over time, these two beetle variants diverge from each other to such an extent that interbreeding is no longer possible.

a. allopatric speciation, ecological isolation
b. sympatric speciation, habitat differentiation
c. allopatric speciation, behavioral isolation
d. sympatric speciation, sexual selection
e. sympatric speciation, allopolyploidy

B. Sympatric speciation, habitat differentiation

Explanation:

In the given example, no geographical barrier has been operational to isolate the two populations of the beetles so as to prevent interbreeding between them. On the other hand, the two variants are present together while developing isolating reproductively from each other. Therefore, it represents sympatric speciation.

The two variants mate inside the flowers of different colors. Since their mating sites are different colored flowers, they are not able to interbreed. This represents habitat differentiation as the one variants of beetle reproduce inside orange the colored flowers while the other inside the red-colored flowers. They develop a tendency to reproduce inside the different habitats (a habitat is a region where an organism lives and reproduces).

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.