1. Darwin's finches vary in size from 10-20 cm and 8-38 g. Warbler-finches are the smallest species of them all. At some time in history, which selection led to their evolution?

2. In the large cactus finch, some males have shorter beaks and other males have
longer beaks. Which type of selection probably operated on this species?
18.2

all answers true and false

explanation:

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called