erm,............no?
on land
Genetic drift has a larger effect on smaller populations.
Geographically, the Arctic is that area around the north pole where the sun does not set at the summer soltice or rise at the winter soltice. This is latitude 66° 32' N which is called the Artic Circle. Climatically, the Arctic Region is defined as those northern areas where the July temperatures do not reach 50°F or 10°C. The latitude of these condions varies both north and south of the Arctic circle. Since they occur on all sides of the north pole, the Arctic, by either definition includes all longitudes.
because of sea-floor spreading
Small populations
Around the Arctic and North Pole.
c.
genetic drift may occur when a small group of individuals colonizes a new habitat
on land
1915.
Genetic drift has a larger effect on smaller populations.
It depends one what north you're talking about. Yes, they can hit the northern United States, but they don not occur, for example, withing the arctic circle.
Arctic ocean
Geographically, the Arctic is that area around the north pole where the sun does not set at the summer soltice or rise at the winter soltice. This is latitude 66° 32' N which is called the Artic Circle. Climatically, the Arctic Region is defined as those northern areas where the July temperatures do not reach 50°F or 10°C. The latitude of these condions varies both north and south of the Arctic circle. Since they occur on all sides of the north pole, the Arctic, by either definition includes all longitudes.
Are small
cold
because of sea-floor spreading