The method is cross-pollination, achieved by utilizing parents with distinct traits.
Gregor Mendel studied pea plants and formulated the foundational principles of heredity. He coined the terms dominant and recessive to describe traits, based on his experiments. He practiced cross-pollination, which involves mating parents that exhibit different traits. For instance, he crossed a plant bearing green peas with another showcasing yellow peas (two contrasting traits) and examined the inheritance of these traits in subsequent generations.
In response to the claim, you could refer to a principle of cell theory, stating that cells are the fundamental unit of life, and critically, all cells arise from pre-existing living cells.
The "passenger pigeon" was once the most prevalent bird in North America, with populations soaring to around 3 billion. They typically traveled in large flocks. Their decline began in the 19th century as they were hunted for food due to their affordability and taste. Additionally, they served as a valuable protein source and were easy to capture because of their numbers despite their fast flight. Some were killed to prevent crop damage, and their nesting habitats faced disturbances, leading them to leave forests. Over-hunting, exacerbated by technological advancements, resulted in more pigeons being killed than were being born, leading to their extinction, with the last one dying in 1914.
