<span>It increased! hope i helped! brainliest please!!
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Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
Biotic and abiotic limitations determine the carrying capacity of a population.
<h3>What is carrying capacity?</h3>
Carrying capacity is defined as the maximum number of individuals that an environment can sustain without destroying the environment. It is determined by various factors such as food availability, water, and space.
So we can conclude that Biotic and abiotic limitations determine the carrying capacity of a population.
Learn more about capacity here:brainly.com/question/1464531
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The choices can be found elsewhere and as follows:
<span>a. climate zone.
b. microclimate.
c. hydrosphere.
d. biosphere.
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I think the correct answer would be option D. <span>The reeds at the edge of a pond form a biosphere where insects or other animals stay. Hope this answers the question.</span>
