The graph shows the results of an experiment that tested the effect of time on plant growth. A student measured the height of the several plants for ten weeks and determined the average height. The results are shown in the graph below. According to the graph, what is the average height of the plants at week 9? _ cm.

brown

explanation:

genetic variation will increase because of a new habitat and food source.

explanation:

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.