Answer:
I believe that the answer would be 39 and 78
D) The island will suffer a loss of native plant and animal species. Due to loss of plants the animals living in a particular area might not be able to find food to survive causing them to die eventually because of starvation
Cilia are thin hairlike structures, flagella are long tail like structures, pseudopods are feetlike projections, and pilli are used to hold onto rocks
The answer would be genes.
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.
