Question

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Select the correct answer from each drop-down menu.
The tentacles of an octopus and the limbs of a lizard perform the same function but have a different evolutionary lineage. Therefore, they are_________ .

The front legs of a cat and the arms of a human share a bone structure that suggests a common evolutionary lineage. Therefore, these skeletal structures are__________ .

The Answers: Vestigial, Analogus, Homologus

Answer 1

Your answers are:

1. Analogous

2. Homologous

If you'd like to know why:

Your clue for the first one is "same function," and "Have different evolutionary lineage." Analogous structures are structures that are similar when comparing animals that are completely unrelated. They are similar in structure because they have similar function.

On the other hand, the second one, homologous structures, they are structures that are similar, when comparing animals that are related, down the line of ancestry.

Vestigial structures, the one not selected, are structures that are found in different animals but differ in size due to evolution, because they are no longer used by certain organisms.

Answer 2

Answer:

1. Analogous

2. Homologous

Explanation: