Answer:
The correct answer is option A. convergent evolution.
Explanation:
Convergent evolution occurs when there are <u>two organisms that have similar characteristics or traits</u>, but there is no recent ancestor from which they have evolved.
That is, each species developed its own characteristic and did not inherit it from a common ancestor. This happens because depending on the habitat, the species have to <u>develop the same solution to a problem that presents itself, even if they are of different species.
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An example of this is sharks and dolphins. They are <u>physically very similar</u>, both have soft skin and fins that serve to chase their prey.
But if we look better, <u>the shark is oviparous</u>, while the <u>dolphin is mammal.</u>
<u>The shark is a killer carnivore while the dolphin is a friendlier animal.
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The explanation of their similarity is due to the fact that the last ancestor they shared lived about 290 million years ago, that is, it was not recent. Then both animals were forced to <u>evolve differently.
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Homology is called to those organisms that have structural similarities because they share the inheritance of a common ancestor.
And it is called analogy to similar characteristics but that do not come from a common ancestor.
Answer:
Air lifted by local surface heating.
Explanation:
Air usually flows vertically, which we call lift. But, air doesn't lift all by itself, it needs help. The processes that lift air, are known as lifting mechanisms.
Convectional lifting is related to surface heating of the ground surface air. Convective uplifting occurs as the sun warms the air above the ground and starts to rise. Air rises and cools, clouds forming and precipitation.The cycle of heating up a parcel of air by conduction on the surface, then the whole parcel rises into the atmosphere as it is colder than the ambient air.
Answer:
an organization composed primarily of sovereign states (referred to as member states), or of other intergovernmental organizations.