How might variations in the poison dart frogs' colors and markings affect the probability that an individual frog will survive in its environment? Construct an explanation in support of your answer.

Depending on its coloration and markings other animals might stay away from it if it had bright markings while one with muted colors could hide more easily.  Depending on the environment certain colors and variations can allow the frog to survive because it is not seen or allow it to survive because other animals are afraid to eat it.

Explanation:

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

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.