EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Suitable variations in a population tend to be passed on while unsuitable variations in a population are not.
|
|
|
Variations in a population exist and those variations are inherited.
|
|
|
Individuals with variations suitable to their environment have shorter lifespans and produce fewer offspring.
|
|
|
Living things tend to produce more offspring than can survive.
|
Detailed explanation-1: -Thus, natural selection favors the individual with survival and/or reproductive advantage over others under existing environmental condition. Thus, the correct answer is option C.
Detailed explanation-2: -There are four principles at work in evolution-variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
Detailed explanation-3: -Natural selection is a simple mechanism that causes populations of living things to change over time. In fact, it is so simple that it can be broken down into five basic steps, abbreviated here as VISTA: Variation, Inheritance, Selection, Time and Adaptation.
Detailed explanation-4: -The essence of Darwin’s theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.