Wheat is a crop that has been domesticated through artificial selection, not natural selection. Humans selectively bred wild grasses over thousands of years to enhance desirable traits such as seed size, yield, and resistance to diseases, resulting in the cultivated wheat we have today.
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.
Natural selection produces adaptations in organisms that increase their fitness and survival in a given environment. Through the mechanism of natural selection, organisms with advantageous traits are more likely to survive and reproduce, leading to the gradual evolution of populations over time.
To produce a new variety of wheat resistant to yellow rust through artificial selection, one could start by identifying and breeding wheat plants that exhibit natural resistance to the disease. This involves selecting parent plants with desirable traits, such as robust immune responses, and cross-pollinating them to create offspring. The progeny would then be screened for resistance to yellow rust, and the most resilient individuals would be selected for further breeding. Over successive generations, this process would enhance the frequency of the resistance traits, ultimately resulting in a new wheat variety that thrives despite yellow rust challenges.
The similarity between natural selection and selective breeding is that they both produce changes in plants and animals.
Natural selection can only work on genetic variation that already exists. So mutation comes first, then natural selection.
Natural selection
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.
Natural selection
natural selection
Natural selection produces adaptations in organisms that increase their fitness and survival in a given environment. Through the mechanism of natural selection, organisms with advantageous traits are more likely to survive and reproduce, leading to the gradual evolution of populations over time.
Natural selection
Hypothesis, since it is a statement that is being tentative about the natural world, in this case dairy cows and the response to their milking ability if they are fed wheat or not.
Since natural selection also means the survival of the fittest, those organisms that produce antibiotics (against life) had a weapon to keep other organisms from taking their space that they needed to grow and reproduce.
Its NaTuRaL sElEcTiOn if you didn't know.
different environments produced different species by natural selection.
different environments produced different species by natural selection.
Yes. Without natural selection there might probably still be change, but it would produce a fine gradient of diverging morphologies in every 'direction' of change. Natural selection limits the 'directions' of change, thereby producing distinct morphologies and thus distinct species.