1)
A. Two different species that possess the homologus trait are butterflies and
dragonflies.
B)
Dragonflies and butterflies possess two pair of wings. The butterfly's wings are made up of two large
pairs of wings eachpossessing a forewing and a hindwing. The veins in the wings nourish them with blood. Butterflies can’t fly if
the temperature of their body falls below 85 degrees and therefore need to sun
themselves in order to warm up. Some
butterflies can fly up to 30 miles per hour.
Dragonflies
have two pairs of wings that are transparent, rigid, straight, and have few
veins. They do not fold or bend. Unlike butterflies, dragonflies are experts
at flying. They can reach speeds up to
90 miles per hour! They can fly sideways, backwards, hover, turn at right
angles and of course fly straight
C)
The ancestors of
modern dragonflies are called Protodonata which were among the 1st winged
insects on Earth. The reason we know their ancestor possessed this trait is
thanks to fossil records.
D)
2)
A. An of example of analogous traits would be the fins of whales and the fins
of fish.
B.
Both whales and fins each possess at least 1 fin. The primary function of their
fins is to guide them during their swim.
Fins located in different places on the fish serve different
purposes, such as moving forward, turning, and keeping an upright position.
c.
The common ancestor of these two species did not possess this analogous trait.
The reason being Whales developed their fins independently.
D.
I'm willing to bet that there may be a relatively close relative between butterflies and dragonflies, but you haven't discussed this and that doesn't necessarily mean that the ancestor possessed wings. You are on the right track here, but needed a little more investigation/information to finish up your argument.
ReplyDeleteGood analogous trait comparison. The only caution is that the common ancestor of these two organisms is traced back 100's of millions of years to an early fish, which means that the ancestor DID have these traits. The key is that the whale did not inherit them through this pathway but developed them independently. That is what makes them analogous.
Hi Mrs. Rodriguez.
DeleteI want to respond by 1st of all thanking you for your feedback and response.
In my post I talked about a close relative of butterflies called Protodonata. These insect which existed before dinosaurs flew high in elevation because early on earths history oxygen levels where higher in higher altitudes.
Furthermore this ancestor was fairly large and did in fact possess wings. Please look at the fossil image I posted. It is proof that these creatures once existed and they look like modern they butterflies.
Thank you
Yes, you mention the ancestor of the dragonfly but not that this was the *common* ancestor between the two organisms (dragonfly and whale), which was the point of this section.
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