Answer:
B--- pay careful attention to what you are observing.
Explanation:
When you go to fast when making observations, you can mess up. When you take your time and pay careful attention when making observations, there is a chance you could mess up, but it is very slim.
Answer:
It is true that studying natural selection in the fields can be challenging. Some of the challenges which Darwin might have faced could have been:
Darwin was only studying one trait for his results. But there might have been many other factors or traits affecting natural selection.
Natural selection does not happen rapidly hence Darwin would have had to wait for many generations to observe the results.
The environment is not such an easy factor to study. It is complex. It might have happened that the environment might have changed before any changes were seen in the population of the birds.
Answer:
Can lead to a drastic change, resulting in a decrease in the gene flow among the species of the original forest before fragmentation.
Explanation:
A forest that is divided into small pieces or areas for agricultural purposes will definitely drive away the organisms originally residing in the forest, thereby reducing the rate of mating, and subsequently decreasing the gene flow.
Agricultural areas are areas of land which are devoted to agriculture. That is, for cultivation of crops and rearing of livestock, most especially for commercial purposes.
1. Small Intestines
2.Vitamins
Sorry i don’t know the others
