DENDROLOGY

TREE IDENTIFICATION

IDENTIFICATION KEYS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these statements best describes what Charles Darwin observed on the Galapagos Islands?
A
The finch population on each island was similar, but unique.
B
the finches on the islands ate seeds and nuts but no insects.
C
The finches on the islands were the same as the finches in Ecuador
D
the finches could produce offspring only with finches from other islands.
Explanation: 

Detailed explanation-1: -The correct answer is (d) All the island finches were very different from the finches on the closest mainland. Darwin’s obervations about Galapagos finches led him to develop his theory of natural selection. He noticed that the finches on the islands were all vastly different from the finches on the mainland.

Detailed explanation-2: -1: Darwin’s Finches: Darwin observed that beak shape varies among finch species. He postulated that the beak of an ancestral species had adapted over time to equip the finches to acquire different food sources.

There is 1 question to complete.