Several times this semester we learned that membranes function to define separate microenvironments in cells; settings wherein different components may be distributed on the two sides of the membrane or where different concentrations of the same component may be established for some purpose. Identify two different systems where concentration gradients are responsible for an important cellular function. Briefly describe the function and how it is dependent on a microenvironmental difference. Please organize your answers using the headings below. To do so, simply copy the four headings below into the answer space and then type your answers to the parts of each question in alignment with its proper heading.

Name of System 1:

How is function dependent on microenvironmental difference?

Name of System 2:

How is function dependent on microenvironmental difference?

black

lasagna

lunch

math

the answer is c. it will give up it's valence electron to the other atom.

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.