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Because the animal is adapted to its environment. :)
On my Science homework was the question What controls Inherited Traits? After reading through my text book I discovered that Inherited traits are controlled by genes. So, the answer to the questtion is genes!
In some cases, the direction of evolution is intentionally controlled by humans. We call this artificial selection, or breeding - as in the breeding of cattle. In all other cases, nobody controls the direction of evolution.
Well, it's part of the weakest link theory. Natural selection weeds out those who are not fit to carry on their genes. Only the best genes are passed onto further generations, leading to a more widely developed population.
The term that is often incorrectly used to describe evolution by natural selection is "survival of the fittest."
The Archaeopteryx evolved through natural selection by inheriting beneficial traits that aided in survival and reproduction, such as feathers for insulation and flight. Individuals with these advantageous traits were more likely to survive and pass on their genes to offspring, leading to the evolutionary development of the Archaeopteryx.
Yes.
Traits controlled by genes are subject to natural selection because they are heritable and can be passed on to offspring, allowing successful variations to increase in frequency over generations. Traits that are not controlled by genes, such as behavior or learned characteristics, are not directly influenced by genetic inheritance and therefore cannot be directly acted upon by natural selection.
because there are alot of peters iin the world like obama
Genes are the medium by which inherited traits are passed on to offspring. It is inherited traits, and thus genes, that receive positive or negative selection.
Because populations evolve. If their was no hereditary transfer of traits by germ line genes then there would be no true selection. Acquired traits, such as a personal habit, are invisible to selection. Somatic mutations that could be beneficial are also invisible to selection. Selection only acts on what is, germ lines in individuals, transmissible to future generation and the gene pool.
Traits are controlled by the genes of the parents.
I'm assuming you meant "Why can only traits controlled by genes be acted upon by natural selection?" Genes hold all of the information that makes up something physically and to some extent psychological and that is what is past down to the offspring. That means any traits acquired can not be past down for example knowing how to hold a pen is not something that is stored in genes it is stored in memory therefore it can not be genetically passed down. If one day I were to get into a battle with a swords master I would win the battle because the pen is mightier then the sword. That would save my life and allow me to pass on my genes, but even though it played a role in natural selection by allowing me to live instead of the sword master it is not stored in the genes and therefore is not genetically passed down to the offspring.
Artificial selection is when humans select traits, such as color or taste and breed for those traits. Natural selection chooses the creatures that are best able to give birth to more offspring, carrying on their genes. The environment chooses.
Genes
genes
Hello there! Traits controlled by two or more genes are for example skin color and height.
Polygenic? Natural selection usually acts on the phenotype of polygenic traits as they are suites of genes acting in concert to form a trait. If you had a trait, such as height, in two variant brothers then the aggregate would need to be selected for as the genes working in concert, but not equally well, would render different heights in the brothers which would be then visible to natural selection.