2.The chicken wing and human arm/forearm/hand, both have humerus,ulna,carpel,metacarpal, and phalenge. The chicken wing is designed for flight and the human arm is designed for movement and picking things up with.
3.Stem reptile. Humans and chicken arms/wings are both descendants of the stem reptile. Both have similar characteristics.
1.Analogous- The owl wing and the butterfly wing. The owl is an Aves, and the butterfly is an Insecta.
2. Both were evolved for flight but both arrived there taking two separate paths. The owl has 2 wings covered with feathers and contains bones. The butterfly has four wings covered in scales and contains tubular veins for support.
3.Maybe not, I think over time, because of environmental pressures, have created the ability for powered flight. Evolutionary process was formed using two different paths but same evolutionary conclusion.
Ha ha! I don't know why, but your post about humans and chickens really bothered me. I think its the ideal that in essence I am eating my ancestors. I think its very fascinating that two entities that seem completely different in just about every outside appearance are in fact more similar than imagined. Very nice post. (I am disturbed by my own issues with chicken and not by your post! Great job!
ReplyDeleteGreat post!
ReplyDeleteSheri, don't worry. You aren't eating your ancestors. Think of it more like eating a very VERY distant cousin. :-)
Sheri, I also think your post was very interesting! I would not have thought to compare the chicken and the human forearm. I never thought of the human and chicken forearms being so alike. Also for your anologous post, your idea to compare the owl wing and the butterfly wing was interesting. Both are derived for flight but are different in so many ways.
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