The best evidence of such phenomena could be a population's genetic variation decrease.
When a population bottleneck occur it means that for some reason (i.e. environmental events) the size of a population is largely reduced. This leads to reduction of the genetic variation in that new smaller population. When a bottleneck occur, the founder effect is normally seen, which is that one population is established by a small group of a previously larger population leading once again the genetic variation, now though with a bigger population, to be very reduced.
Answer:
1. Polonium
2. Mercury
3. Arsenic
4. Francium
5. Lead
<em>these</em><em> </em><em>5</em><em> </em><em>elements</em><em> </em><em>are</em><em> </em><em>very</em><em> </em><em>very</em><em> </em><em>dan</em><em>gerous</em><em>.</em><em>.</em><em>.</em>
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em><em> </em><em>plz</em><em> </em><em>mark</em><em> </em><em>as</em><em> </em><em>bra</em><em>inlist</em>
Wind because its not mechanically eroding them..
The answer is <span>c. Cold and flu season occurs when the weather is cold, so there must be a connection.
Even though choices a. and b. could make sense, nothing in Joel's research implies the connection between the choices and cold. Therefore, this leaves choice c. as the right one. If cold and flu season occurs</span><span> when the weather is cold, there must be a connection between cold and cold weather.</span>
This is very true but I don't see the question
