How has an understanding of natural selection impacted agriculture?A it improved transportation and logisticsB it increased crop yield and productivityC it enhanced communication and marketing strategiesD it expanded opportunities for international trade

The understanding of natural selection has greatly impacted agriculture by increasing crop yield and productivity. This is because natural selection is the process by which species adapt to their environment and those that are better adapted tend to survive and reproduce more than those that are not.

In agriculture, this understanding has been used to selectively breed plants and animals that have desirable traits, such as resistance to diseases, pests, and harsh weather conditions, and high yield. Over time, these traits become more common in the population, leading to more productive and resilient crops and livestock. This has helped to increase the quantity and quality of food production, thereby contributing to food security and economic development.

So, the correct answer is B: it increased crop yield and productivity.

The understanding of natural selection has greatly impacted agriculture by increasing crop yield and productivity. This is because natural selection is the process by which species adapt to their environment and those that are better adapted tend to survive and reproduce more than those that are not.

In agriculture, this understanding has been used to selectively breed plants and animals that have desirable traits, such as resistance to diseases, pests, and harsh weather conditions, and high yield. Over time, these traits become more common in the population, leading to more productive and resilient crops and livestock. This has helped to increase the quantity and quality of food production, thereby contributing to food security and economic development.

So, the correct answer is B: it increased crop yield and productivity.