Evolution isn't a steady process. When the environment changes, the organisms have to adapt quickly or perish. A theory known as punctuated equilibrium accounts for this. Any changes in then environment brought on by natural or artificial changes will cause animals to evolve to those changes. It may be that they just have to migrate where the climate is more suitable. When you look at geologic sequences, you can often see the different environments as the climate changed and a new suite of animals and plants took over.
<span>It is fantasy to claim that the "old" environment was stable before humans came along unless you live in the tropics. There was a mile of ice over NYC and Chicago 15 thousand years ago. </span>
<span>Geologic changes can affect evolution by creating population splits which allows for speciation. For example, the thrusting up of a mountain range may cause one population to split into two. The separate populations may then evolve on their own sometimes into new niches. One population may stay relatively similar and the other may change dramatically.</span>
Answer:
Among the waterways linking the lakes are the St. Marys River, which flows from Lake Superior to Lake Huron; the Niagara River, connecting Lake Erie to Lake Ontario; and the narrow Straits of Mackinac , joining Lake Michigan and Lake Huron (hydrologically, the two lakes are considered a single body of water).
Explanation:
People began to realise that slavery was wrong.
Answer:
A. Federal law always supercedes state law.
Explanation:
Gibbons v. Ogden was a Supreme Court case which held that the Congress of the United States of America had authority, jurisdiction and power to regulate any interstate commerce with respect to the Commerce Clause of the Constitution.
In New York city, the state legislature granted a monopoly to Robert R. Livingston and Robert Fulton an exclusive navigation rights or privileges of operating on all New York state waters with boats that are being moved either by steam or fire, for a time frame of thirty (30) years. Aaron Orgedon was the governor.
In Gibbons v. Ogden (1824), the Supreme Court under Chief Justice John Marshall, ruled that in business disputes, federal law always supercedes state law. It held that the permission granted to the state, New York city was monopolistic and as such was not permitted.
Answer:
The earliest civilizations to develop were all situated near major rivers. These rivers provided a regular water supply and a means of transportation. The animals that flocked to the rivers to drink were a source of food... Thus they were able to produce enough food to support increasingly large populations.
Hope that helps?
