What conclusion can Della draw about how the membrane of her model cell is similar to a the membrane of a living cell?

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

c

explanation:

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

i am sorry but i need more information and a picture.