Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Pigeon breeders prize certain looks of their pigeons. They know that pairing certain pigeons results in offspring that exemplify the looks of their parents. Which of Darwin’s four observations applies to this example?Observation 1Observation 2Observation 3Observation 4

Sagot :

The four key points of Darwin's evolution theory are the following:

-Variation in populations

Individuals of a determined species are not equal, there are small variations between individuals, even if they are related. They may vary in color, size, weight, and other characteristics. This happens because even individuals from the same species have different genetic makeups.

-Inherited traits

Every species has determined traits that are inherited. These traits are passed from parents to offspring and those who help improve the odds of survival are more likely to be passed to the subsequent generations (adaptation)

Only traits that are genetically encoded can be inherited to the next generations, those who are developed through environmental factors are not inherited.

-Selection

Some individuals have inherited characteristics that help them survive and produce offspring. For example, individuals with colors that allow them to camouflage and avoid predators are more likely to survive and reproduce than those that do not have camouflage. As a result, the genes of the individuals with better odds of survival will become more common in the population.

-Time

Over time, selection produces changes within the species, usually, these changes are not observed until many generations have passed and are the result of successful variations accumulated through time.

Breeders know that if they breed certain pigeons, their offspring will show the traits they are interested in, which means that the offspring will inherit the traits from their parents. This scenario follows the inheritance of traits observation.