Answer:
B. Populations of amphibians in a few local areas have declined dramatically in the last few decades
Explanation:
The continuous, low-level extinction of species that has occurred throughout the World and at least six species of frogs have not been seen for one to three decades and also it has recently been discovered that some species of salamander-specific chytrid has gone into extinction
He observed 15 different finch species that originated as one ancestral bird. all differing in body shape, beak size, and mating habbits
Nucleic acids are the building blocks of proteins so a b is rna and C is genes