You prepared a series of tubes with increasing concentrations of maltose. After reading the absorbance of these tubes you prepared a Maltose Standard Curve. The equation of the line of best fit you obtained is:
y = 1.9x -0.053
You then did an experiment to study the effect of pH on amylase activity. Amylase was mixed with starch and buffer of varying pH in several tubes, which
were incubated for 10 minutes at 45°C. The DNS assay was done and absorbance readings were collected and are shown in the table:
Tube pH
Absorbance Maltose (mg/ml) Amylase Activity
(mg/ml/min)
1
0.052
2
3
3
0.339
3
5
0.899
4
7
0.393
S
9
0.018

a time line cause it goes from 685 to 978

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.