Animalscaretips
- Are the parts of the bone arranged in a similar way in each animal?
- Does the similarity in bone structure suggest a common ancestry amongst these animals?
- What accounts for the similarities in some bone structures?
- What are the structures that are not similar to each other?
- What physical similarities exist between each of the embryos?
- How do these similarities support the theory of evolution?
- What do the similarities among the forelimb bone arrangement of these diverse animals imply?
- How is the human forelimb similar to that of the other three mammals?
- What are structures that are anatomically similar because they are inherited from a common ancestor?
- Which structures are similar in function?
- What anatomy is the study of similarities and differences in organisms structures?
- Which structures are similar in function but do not indicate that the organisms are related?
- In what ways are organisms alike and different from one another?
- What are the similarities between homologous and analogous structures?
- Why does comparative embryology show similarities between organisms that do not appear to be similar as adults?
Are the parts of the bone arranged in a similar way in each animal?
Are the bones arranged in a similar way in each animal? These structures are formed in similar ways during embryonic development and share like arrangements; however, they have somewhat different forms and functions. They are called homologous structures.
Does the similarity in bone structure suggest a common ancestry amongst these animals?
ANALOGOUS STRUCTURES
ARRANGED SIMILARLY YES IT SUGGESTS A COMMON ANCESTRY. THE SPECIES ILLUSTRATED HAVE SIMILAR BONE STRUCTURES SUGGESTING COMMON ANCESTRY. HOWEVER THOSE STRUCTURES HAVE DIFFERENT FUNCTIONS DEPENDING ON EACH SPECIES' ENVIRONMENT. THEY SHARE THE SAME FUNCTION.
What accounts for the similarities in some bone structures?
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones.
What are the structures that are not similar to each other?
Structures like the human tail bone and whale pelvis are called vestigial structures. Evolution has reduced their size because the structures are no longer used. The human appendix is another example of a vestigial structure.
What physical similarities exist between each of the embryos?
Each of the embryos has the same basic shape, including a tail. They all have external segmentation where the backbone will eventually develop. They also all have gill slits, even the animals that will eventually develop lungs. 2.
How do these similarities support the theory of evolution?
Multiple types of evidence support the theory of evolution: Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features).
What do the similarities among the forelimb bone arrangement of these diverse animals imply?
14, What do the siinilarities among the forelimb bone arrangement of these diverse animals imply about their ancestry? That the information used to create the forelimb is similar and the organisms may share a common ancestor.
How is the human forelimb similar to that of the other three mammals?
A clear example of homologous structures is the forelimb of mammals. When examined closely, the forelimbs of humans, whales, dogs, and bats all are very similar in structure. Each possesses the same number of bones, arranged in almost the same way. ... They are analogous structures.
What are structures that are anatomically similar because they are inherited from a common ancestor?
Homologous structures are structures, or body features, that are similar in two different species. The structures are similar because they were inherited from a common ancestor. Scientists can examine homologous structures to determine how closely related two species are to each other on the phylogenetic tree of life.
Which structures are similar in function?
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.
What anatomy is the study of similarities and differences in organisms structures?
Comparative anatomy is the study of similarities and differences in the anatomy of different species. It is closely related to evolutionary biology and phylogeny (the evolution of species).
Which structures are similar in function but do not indicate that the organisms are related?
Analogous structures are similar structures in unrelated organisms. These structures are similar because they do the same job, not because they share common ancestry. For example, dolphins and sharks both have fins, even though they aren't related. Both species developed fins because of how (and where) they live.
In what ways are organisms alike and different from one another?
Similar organisms have differences that help them adapt to their environments. Many organisms have similar body plans. Horses', donkeys', and zebras' bodies are set up in pretty much the same way, because they are descended from a common ancestor. As organisms adapt and evolve, not everything about them changes.
What are the similarities between homologous and analogous structures?
Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin. Analogous organs have a similar function. For example, the bones in a whale's front flipper are homologous to the bones in the human arm.
Why does comparative embryology show similarities between organisms that do not appear to be similar as adults?
Comparative embryology shows similarities between organisms that do not appear to be similar as adults because many features of embryos disappear by adulthood. For example, all vertebrate embryos have a tail and gill slits, but these disappear by adulthood in many vertebrates, including humans.
