Answer:
A malaria outbreak causing allele frequencies to change is an example of <u><em>natural selection.</em></u>
Explanation:
Natural selection is a type of selection in which those organisms are favoured to live and reproduce which are better adapted to live in an environment. Due to natural selection, the allele frequencies of a population will tend to change with the passage of time.
When the outbreak of malaria occurs, those organisms which do not catch malaria are able to survive and pass on their characteristics to their offsprings. the other organisms die and do not reproduce. This will cause changes in the allele frequencies.
Answer:
Plasma.
Explanation:
The main connective tissue of human body is blood. Blood mainly composed of the plasma and formed elements. Formed elements include white blood cell, red blood cells and platelets.
Blood plasma is present around 55% in composition. The blood plasma contains various coagulant factors, ions, proteins and chemicals. Plasma is the fluid portion of blood that needs to be drawn in presence of the anticoagulant compound.
Thus, the answer is plasma.
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