Question

Birds and humans are theorized to have a common ancestor because they have homologous structures. Which evidence best supports this theory? They both have tails as embryos. They each have vestigial structures. They have analogous structures. They have different forms as adults.

Answer 1

Hey there, science buddy! Let's spread those wings of knowledge and dive into the world of common ancestors between birds and humans.

So, the evidence that really hollers, "Hey, we might be related!" is

"B. They each have vestigial structures."

Vestigial structures are like the relics of our ancestors' closets. In this case, both birds and humans carry these quirky leftovers—structures that were once functional in our shared ancestor but aren't as handy now. Think of appendixes in humans or the tiny wings of flightless birds.

These leftover bits and bobs are like hidden messages in our bodies, whispering about our shared family tree. They're the ultimate proof that somewhere, way back when, we had a common relative. Isn't evolution a fascinating adventure?

Step-by-step explanation:

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