2D
1D
A.Two different species that possesses a homologus trait are a dog and a cat each of these mammals possess a trait of a paw.
B. Each of these animals possesses homologous trait of a paw, both a dog and a cat have many differences in structures. each come from a different species the cat comes from the feline species and the dog comes from the canine species but each of these species posseses a simlair trait and that is the trait of having a paw. Each of these animals have a different body structure the dog is bigger and is more muscular and broader and a cat is more flexible and narrow which enables it to get through small places. Each of these animals possess the same trait but uses it for different purposes for instance a dog uses a paw to dig up dirt and also to run and also use there paw as a defense or attack upon other animals, a cat uses there paws to climb up things such as tree’s and high places.
C The ancestors of the cat were traced back mostly through the teeth of fossils. The first creatures had sharp teeth and looked like little wolves. These Carwora were fierce hunters of small rodents They probabaly pranced like a horse, ate like a hog, had eyes like a dog and brooded like a buffalo. All those animals had the same ancestor, Artorcyon.
A.Two different species that possesses a homologus trait are a dog and a cat each of these mammals possess a trait of a paw.
B. Each of these animals has similarities in structure for instance they each have limbs, paws and tail.They both have fur, whiskers, eyes, ears, etc.When broken down each of these animals skeleton structure of a paw is very similar. Each of these animals uses there paws for similar reasons for example to dig, to attack and to also run and walk, etc.
C. Each of these species has a common ancestor an example of this might be an animal that was called the Artorcyon. And if we go far enough back in time we would fine one common ancestor between the dog and the cat but at one point in time at particular trait called to different species to emerge now knows as the feline species and the canine species. Now this common ancestor of these two species possessed an analogous trait called the paw and this goes to show the all pairs of organisms share some common ancestor if you go back far enough in time.
That is so interesting! I never thought of a dog's paw and a cat's paw similarities! I also didn't know that one of the major functions is so that they could get through small areas. That was really informative for me. Thank you!
ReplyDeleteAnother difference between a dog and a cat's paw is, a cat can retract its nails and a dog cannot. I do not think you mentioned that, but I could be wrong. Other than that, you did a really good job at comparing the two and stating the homologous and analogous traits. I don't think most people used the same two species for both the homologous and analogous trait because that is hard to do. So good job!
ReplyDelete@lindsay hibbs
ReplyDeleteyes to me it was very interesting, And I love dogs, cats so i decided to do the assignment on them. Yes my cat goes through littlest places I think because she is still a baby cat but a few years i doubt she can do that.
Thank you for your comment
@sarah C
ReplyDeleteI also find that so interesting i think you taught me something new about the retract on the nails for a cat. And thank you for the comment I really put alot of time into this assingment. And I also read your blog very well done
thanks
Good job on the homologs and great description of a potential common ancestor. Did you mean "Arctocyon" with a "c"?
ReplyDeleteUnfortunately, your second section was also a description of homologus traits. You list the paw in the first part as a homolog in the dog and the cat and then list it again as an analog in the dog and the cat? If the dog and the cat common ancestor possessed the paw structure, then it must be a homolog.