It will ultimately affect every branch of the food chain, as protists are the basis of it all.
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.
Hand burning from stove-remove hand away from stove-somatosensory stimulus
Answer:
Igneous rocks and Metamorphic rocks determine the age of the earth.
(Rice) is a Complex carbohydrate because they are made of sugar molecules strung together in complex strands.
