Abiologist observes that a species of stick insects on a remote stand has three different colortraits, almost equally distributed among the population
one phenotype is dark green a second is light green and a third is light green with dark green stripes over a decade, the biologist observes that the
dark green phenotype becomes the most abundant, making up nearly 70% of the population which statement is the best explanation for this
phenomenon?

vote read

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.

is this for the e2020 class

the correct answer is b

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.