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This is a bone of contention among some biologists, Some say that the individual organism is the smallest unit upon which natural selection directly acts and some say it is the gene.
I would check your textbook to see which way this wind blows, but most texts I have seen, or used, generally, say that the individual organism, or the individuals organism's phenotype is that which natural selection acts directly on. Of course, texts are conservative in their outlook.
Something funny here about attribution of answer, so I write this to get this answer under my user name.
What else can I help you with?
What process in which organisims with traits well suited to an environment are more likely to survive and to produce offspring is?
This process is called natural selection. It is the mechanism by which traits that provide a survival or reproductive advantage to an organism become more common in a population over time.
What comes first mutation or natural selection?
Natural selection can only work on genetic variation that already exists. So mutation comes first, then natural selection.
How has the natural selection harmed the ecosystem?
It hasn't. Natural selection is a key part of the ecosystem itself.
What does natural selection have to do with biodiversity?
Natural selection is the mechanism primarily responsible for the development of today's biodiversity.
Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
What is the fundamental unit on which natural selection acts?
individual
What does the unit of evolution depend on?
The unit of evolution depends on the level at which genetic variation is passed on to the next generation. This can occur at the level of individuals, populations, or species. The unit of selection is the entity on which natural selection acts to drive evolutionary change.
What is the name for the process in which the organisms best adapted to their environment survive?
Its NaTuRaL sElEcTiOn if you didn't know.
Adaptation which allows for natural selection is called?
Adaptation does not allow for natural selection: natural selection causes adaptation.
What is the prefix and suffix of natural selection?
The prefix of natural selection is "natural" and the suffix is "-tion".
How does genetic variation support Natural Selection?
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
The mechanism by which organisms evolve is known as?
Natural Selection
What principles includes variation and competition?
Natural selection.
What was Darwin's overall conclusion regarding natural selection?
That selection was natural.
Is natural selection a form of adaptation?
Natural selection is what causes adaptation.
Is natural selection an example of macroevolution?
No, natural selection is the mechanism that drivesevolution.
What is another term for the surivival of the fittest?
Natural selection
