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:
True.
Explanation:
Emergency communication is the form of communication done during an emergency time. It is different from daily life form of communication.
An emergency communication system plays an important role during emergency times. These systems use different modes of media to share information during such times. Some examples are radio, live streaming, etc.
<u>The functions stated above are the ones performed by an emergency communication system including saving lives, working to protect properties and environment also. These systems also educate people during such times and help them to control their behaviors and help reduce the panicking of people.</u>
So, the answer is true.
B. Cooperative federalism has been practiced in the US since 1860.
Cooperative federalism, or the concept of federalism in which local, state, and federal governments work together to create policies, replaced dual federalism in the 1930s.