(b) Propose how the different types of natural selection may change the frequency distribution of a phenotypic variation for the size of bird's beak in a population of birds over
successive generation.[12 marks]

Monitor and apply fix up stratorgies

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes