Answer: 1) jet streams are like rivers of wind high above in the atmosphere. these slim strips of strong winds have a huge influence on climate as they can push air masses around and affect weather patterns-- they form a bond between hot and cold air
2) lifting along fronts: when air masses interact. lifting also occurs along frontal boundaries as air masses of different temperature and moisture content interact with each other. the lifted air cools and the water vapor condences to form clouds in advance of the surface warm front
3) when the temperature difference between the cold and warm is large, thunderstorms and even tornadoes may form. thunderstorms can form at a cold front or within air masses. at a cold front, air can be forced upard quckly. within an air mass, uneven heating can produce convection and thunderstorms
Answer:
The correct answer is "some stickleback populations come to live exclusively in fresh water they became trapped in lakes that formed at the end of the last ice age".
Explanation:
There are different types of speciation. Allopatric speciation consists of the geographic separation of a continuous genetic background so that it can give place to two or more new geographically isolated populations. Some barriers might impede the genetic interchange or genetic flux, making a place to two new populations that are separated and can not get together to mate anymore. Glaciation is one of the most important drivers of speciation and production of different phylogeographic structures by vicariance. Glacials originate isolated gene-pools that accumulate differences that end in reproductive isolation. Melting of the ice also generated divergence and speciation, as land appearance acted as a barrier for some populations.
During the last glaciation, stickleback fishes were able to reach certain new places or areas that provided better conditions to inhabit. There were fewer predators and more available food sources that made these new areas to be a better choice. These new grounds were lakes and were the product of ice melting. But at a certain point, as ice melting increased, the land started to show up again and became a barrier for this species. Animals that were living in lakes could not go back to the sea, they were trapped so they had to adapt to living exclusively in lakes. This species diverged and suffered speciation.
Answer:
This is an English Language question and I need to choose the most appropriate option.
The answer is Option E
Explanation:
Option A is incorrect because 'each of which' is supposed to be followed by a singular verb 'is' and not 'are'. 'When' is used incorrectly here.
Option B is incorrect because 'which' is not introducing an meaningful non-defining clause in the statement. It is referring to the shark's jaws. The first two clauses are not connected to 'which'.
Option C is incorrect. 'Each one of which are ready' should be 'each one of which is ready'. It is also referring to the shark's jaw.
Option D is Incorrect. The use of a present continuous verb 'lying' is incorrect. The first clause also has not meaning.
Option E is correct.
The sequence will be:
TGCATA
Hope this helps :)
Answer:
The frequency of the r allele in this population is 0.80
Explanation:
64+36=100 plants
Frequency of White Flowering plants(rr) = 64/100
rr = 0.64
r is calculated by finding the square root of 0.64 which gives 0.80.