Bats and humans have homologous traits. Bats and humans are vertebrates and both have
skeletons and its traits are passed generation to generation. Humans front limb bones are homologous to the
bones of a bats front limbs; both of their front limbs in five and the parts are
different sizes and they look similar.
Analogy is something comparable and similar but no relation
to each other. For example, animals with
wings like birds, insects, bats, etc. are considered to be analogy. Insects and birds have wings. Insects have boneless wings and birds have
bones. Some insects have scale wings and
birds usually have feathers on it. They
are different species but share a trait and that is wings and they fly with
them, so therefore there environment is the same. The trait wings itself is an analogy.
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ReplyDeleteYour homologous trait is correctly identified. Missing a lot of the back-up information requested from the guidelines, however. How are the structures different and how is this explained by understanding their different functions? How do you know that that common ancestor had this trait... or did the common ancestor possess the archaic version of this trait? In other words, how do you know these are homologs? Good images.
ReplyDeleteFor your analogous traits, okay on your explanation of the similar function and environment. Missing the discussion on ancestry? Good images.
Be sure to address all the points in the guidelines so you can avoid losing points unnecessarily.
Great example of the homologous traits of the human and the bat, and great use of the images. It's interesting that bat's actually use their forelimbs to walk on all fours when on the ground, as we can imagine early humans did in the beginning of their evolution, and most likely the ancestor common to both.
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