Answer:
c. Directional selection
Explanation:
There are three types of selection: stabilizing, directional and disruptive. Currently seed cracker finches show disruptive selection with respect to bills. In disruptive selection two extreme phenotypes are preferred in population over the mean phenotype. Here either, small or large bills are beneficial for birds so it is an example of disruptive selection.
If due to some climatic change all seeds would become hard, it would be more beneficial for birds to have large bills. Slowly nature will select for birds with large bills rather than birds with small bills. The selection now will shift to directional selection since only one of the extreme phenotypes is being favoured.
C) governing in their own interests rather than the public interest
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Science is required in the study of human development because research provides facts and data which will make people enabling to live their lives fully.
There are certain other reasons which make it important to study human development scientifically like the understanding of human development throughout their lifespan, makes a better understanding of the children or the off springs and the way to deal with them. The study of human development usually follows a predictable pattern so it makes a better understanding and enables to take better decisions at certain point of time.
Answer:
A planet is a celestial body that is in orbit around the sun.
It has sufficient mass for it's self gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium shape.
It has cleared the neighborhood around its orbit.
An example of planet is the earth
Organisms that obtain enegy from the food they consume is called a heterotroph or consumer
