force has many different definition, here are some examples.
1) Force is a push or pull
2) Force is the capacity to do work or cause physical change
3) Force= Mass times acceleration (F = ma)
<span>4) A force is that which changes or tends to change the state of rest or motion of a body</span>
Answer:
of blood plasma was “cleared”
Explanation:
Given,
Concentration of a person’s blood cortisol 
µg/mL
The amount of cortisol excreted from the body in a period of 24 hour mg
The volume of blood plasma cleared during this time period is equal to
amount of cortisol excreted from the body divided by Concentration of a person’s blood cortisol
The above definition could be represented as following-
volume of blood plasma cleared 
Where A represents amount of cortisol excreted from the body
while B represents the concentration of a person’s blood cortisol
Substituting the given values in above equation, we get -
of blood plasma was “cleared”
Answer:
Phenotypic variation is the variation which appears in the phenotype or morphology of the organism. Natural selection is the mechanism of evolution in which the adapated organism to the environment is selected or highly favoured during the course of evolution.
A phenotype is the results of the genetic change which to be established in a population has to be passed on to the generation.
Since variation in phenotypic traits allows the organism to leave indifferent circumstances therefore phenotypic variation proves essential condition to natural selection.
<span>By walking on two feet, also since our morphological features, especially our eyes, hands and other parts are towards the frontal phase.
This is also an intellectual advantage for most humans since when we are upward we can better see our surroundings, seem bigger and taller, can detect preys and other mechanisms for survival.
Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.</span>
