<em>A natural disaster. </em>
Explanation:
A natural disaster would most likely have occurred to have the population of squirrels completely diverge from each other in order for them to become two separate species.
If a tornado, flood, earthquake, or another type of a natural disaster were to happen, it may have caused drastic damage to the ecosystem and environment of the squirrels. This would most likely cause the squirrels to split up, or diverge from each other and go to separate places in search of a new home.
Over time, these squirrels will reproduce with their own group. Each new group of squirrels, as they are both in different environments now, will have different adaptations from each other. This will eventually make it so they will never be able to reproduce with each other again if they were to meet, as they are now completely different species of squirrel.
Simply create a dihybrid cross, and then create ratios from the outcomes. Remember that ratios only come from the bottom part of any fractions *If you need more help on dihybrid crosses I can send an example image
<span>Craig Venter is an
American biochemist, geneticist, biotechnologist, and businessman. He is
popular for his contribution as the 1st person to sequence the human
genome and the 1st scientist to transfect a cell with a synthetic genome.
He’s now into creating synthetic biological organisms. He was even listed in
the Time Magazine 2007-2008 as one of the top 100 most influential people
worldwide. His works has really been significant in microbiology. </span>
#1 is climate, whether is specific climate is over all what it does
#2 It is weather, you don't usually need galoshes only when it rains its climate isnt to rain that particular day, that is its weather
#3 again refers to weather, it isn't always windy just when the weather turns.
