Peppered moths. They were initially light coloured but the industrial revolution came and cover the trees with soot or dust, darkening the tree barks. The light coloured moths were preyed on easily so more dark coloured moths who were able to camouflage survived. The darker coloured moths has better reproductive success, passed on the favourable alleles to their young, over generations, increase the frequency of dark coloured allele in the gene pool.
You can read about it search peppered moths
Because his principles of geology explained how Earth was shaped by the same processes, earthquakes, volcanoes, etc, as they are today. Darwin used this principle to hypothesize his theory of evolution that species must have also changed over time by the same processes like fitness.
Answer:
yes i believe it is.... good luck!
Explanation:
Answer: 1. Plucking
2.Moraine
3. Kettle lake
Plucking is a process of erosion in glacier in which rocks and sediments are displaced by the glacier to other locations. These rocks and sediments gets freeze at the bottom of the glacier.
A moraine is a sediment deposited by a glacier. This may be in a form of thick layer of sediment called as ground moraine or a small ridge of deposits called as end moraine.
A kettle lake is formed when ice in large extent gets melted and this results in formation of depression which is called as kettle. The kettle is filled by melted water forming a lake or kettle lake.
Answer:
A
Explanation:
symmetry about a central axis, as in a starfish or a tulip flower
