The type of soil varies from place to place on our planet and can even vary from one place to another in your own backyard. Soil erosion, caused by wind and rain, can change land by wearing down mountains, creating valleys, making rivers appear and disappear.
Answer:
6, 3, 4, 5, 7, 2, 1
Explanation:
Here, speciation occurs because the original butterfly population gets separated into two populations, each facing a different set of environmental conditions. Initially, there was just a single population of butterflies in the valley and all butterflies were able to mate with each other. A fire destroyed their habitat so they had to migrate to other areas. Some butterflies migrated to eastern side of mountain and some to western side of mountain.
Now there were two butterfly populations and they faced different environment from each other. Over the time, the populations adapted to their local surroundings and started to accumulate changes in their genome. Their gene pools started to separate from each other. Eventually they evolved into two different species. When their old habitat was restored in the valley, they returned once again. However, this time they were not able to interbreed because they were now two different species.
A sudden change in the weather is caused by an air mass.
Answer: The correct answer is-
C) Genes.
Traits are the particular characteristics of an individual ( such as eye color, skin color, hair color) that are depicted by genes ( segment of DNA that corresponds to particular protein, which determines specific trait of an individual).
Genes carry genetic information ( in the form of DNA sequence) that is passed from one generation to the next.
Gregor Mendel studied different genes ( corresponding to traits of pea plant) and their pattern of inheritance.
Thus, scientist used his data to conclude that traits are passed from parents to offspring through genes.
