What evidence can you find that the axial skeletons of higher vertebrates have homologous parts? What...

What evidence can you find that the axial skeletons of higher vertebrates have homologous parts? What inferences would this lead scientists to conclude?

Expert Solution

Skeleton Is of two types a) exoskeleton-seen in invertebrates

b) endoskeleton-seen in vertebrates

In higher vertebrates skeletal system comprises of axial skeleton and appendicular skeleton.Axial skeleton includes skull,vertebrae,spinal cord, sternum and ribs. Appendicular skeleton includes limbs and their attachments with axial skeleton.

Common characteristics of vertebrates a) notochord

b)dorsal hollow nerve cord

c)pharyngeal slits

d)post anal tail

In higher vertebrates which includes reptiles,birds and mammals dorsal hollow nerve cord develops into brain whereas notochord develops into spinal cord and vertebrae.

These evidence suggest that axial skeleton of higher vertebrates have homologous parts.

Scientists had concluded this taking into account of common characteristics of vertebrates viz.notochord,dorsal hollow nerve cord,pharyngeal slits,post anal tail.Morphological homologous structures are produced through different developmental process .Another common feature of higher vertebrates show amniotic embryos.

Sydney Mullin answered 1 year ago

what structures in vertebrates are homologous and which structures are analogous

What is the indirect evidence of evolution? What are homologous and analogous structures?

What is the indirect evidence of evolution? What are homologous and analogous structures? What is convergent evolution? How does similarity of proteins between different species support the idea of evolution?

You are informed that there is empirical evidence that developed countries have much higher rates of...

You are informed that there is empirical evidence that developed countries have much higher rates of COVID-19 infection than developing countries. A researcher informs you that this is a very strong and significant evidence on the negative causal relationship between economic development and infection rates. a- Do you agree that this reflects a negative relation between economic development and infection rates? Explain. (hint: negative is referring to the direction of the relation or the slope if you were to graph...

What recent evidence about bundled payment programs can you find? Are they growing? Are they saving...

What recent evidence about bundled payment programs can you find? Are they growing? Are they saving money? Do enrollees seem to like the care they get? Is the quality of care good?

Most vertebrates have testosterone, and have behaviors that are mediated by this hormone. Testosterone can be...

Most vertebrates have testosterone, and have behaviors that are mediated by this hormone. Testosterone can be helpful to animals, by enhancing (e.g.) territory acquisition, or harmful, by (e.g.) causing physiological stress. When male blackbirds are exposed to other male blackbirds, their testosterone levels change. In order to understand the impacts of testosterone on male blackbirds, researchers followed a few individual males, to monitor testosterone changes after encountering another male. A pre-exposure measurement was made (in nanograms/deciliter) and a post-exposure measurement...

Suppose you have a 4340 steel plate in fully reversed axial loading, with an axial load...

Suppose you have a 4340 steel plate in fully reversed axial loading, with an axial load varying from 15000 lbf to -15000 lbf. The plate is 1⁄4” thick, 2” high, and 5” long. A hole is in the center of the plate, and is 1/4“ in diameter. The stress concentration factor chart is in the Quiz 3 References. The fully adjusted endurance limit was found to be Se = 25 ksi. The fatigue strength fraction f is 0.76. The notch...

Vertebrates have smaller exons than arthropods. What might best explain this difference? a-Vertebrates use the exon...

Vertebrates have smaller exons than arthropods. What might best explain this difference? a-Vertebrates use the exon definition. b-Arthropods have more alternative splicing. c-Arthropods use the exon definition. d-Vertebrates have more alternative splicing.

Question from Dancing with Skeletons: Does the author suggest that difficult or tragic experiences can have...

Question from Dancing with Skeletons: Does the author suggest that difficult or tragic experiences can have any life-enhancing outcomes? If so, or if not, what is your belief on this subject? Can terrible hardships improve one’s understand of other parts of life?

What evidence have you seen of neo-liberal economic restructuring in Canada? Can you think of examples?...

What evidence have you seen of neo-liberal economic restructuring in Canada? Can you think of examples? What can be learned about social reproduction and its relationship to production and economies from neo-liberal economic restructuring in Canada?

1. What can you find in a lessons learned report? 2. What can you find in...

1. What can you find in a lessons learned report? 2. What can you find in a progress report? 3. How would you improve your communication skills? Feel free to express your opinion.

Question