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How are vertebrate embryos evidence of evolution?
All vertebrate embryos look roughly the same, showing that they come from a common ancestor.
What do all vertebrate organisms have in common when they are embryos?
pouches
All vertebrate embryos develop gills during one of the many growth phases in their development?
It would be more appropriate to say that all vertebrate embryos develop pharyngeal gill slits during one of the many phases in their embryonic development. This is because while gills are specifically present in fishes, pharyngeal gill slits are a general chordate feature.
Why does comparative embryology show similarities between organisms that do not appear to be similar as adults?
Comparative embryology is the study of the similarities and differences in the embryos of different species. Similarities in embryos are evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails. All of the animals except for fish, lose their gills slits by adulthood. Some of them also lose their tail. In humans, the tail is reduced to the tail bone. Thus, similarities organisms share as embryos may be gone by adulthood. This is why it is valuable to compare organisms in the embryonic stage
Which adaptation for successful development is characteristic of all embryos?
All embryos must have a mechanism for absorbing oxygen
What type of embryos have pharngeal slits?
All chordates embryos have pharngeal slits.
What two things do all growing embryos need?
the 2 things that ALL growing embryos need are food and oxygen
What are the characteristics of the pharyngula stage in development?
The pharyngula stage is a stage in vertebrate development where the basic body plan is established. It is characterized by the presence of pharyngeal arches, a notochord, and somites which will develop into various structures like the spinal cord and muscles. During this stage, the embryo exhibits bilateral symmetry and begins to show the segmentation of its body.
Is the fox a vertebrate or invertebrate?
The red fox is a vertebrate as are all mammals.
Do all organisms start out as embryos?
No, not all organisms start out as embryos. Embryos are typically seen in higher animals that undergo sexual reproduction, where a fertilized egg develops into an organism. Organisms like bacteria and protists reproduce asexually and do not have an embryonic stage in their life cycle.
Do early chick and pig embryos have a similar structure and appearance?
The early embryos of all animals have a very similar appearance. This is no different for chicken and pig embryos.
Is a sparrow an invertebrate or vertebrate?
Vertebrate...... it has a back bone therefore, is considered a vertebrate.
