Identify whether or not the following structures are convergent traits .



1) tailbone of human and tail of dogs

2) wlngs of bats and flippers of whales

3) true roots and root - like stems(rhizomes) of plants.

4) webbed feet of duck and otters.

5) long snout of egg- laying echidna and placental giant anteater.

6) flippers of dolphins and fins of fish

7) cactus spin and tree leaf