Similarities of animal embryonic and human embryonic?
Depending on what animal because animals are very different from one another, but that would mean you are considering humans not animals.
Why is it useful for scientists to look at embryonic structures when determining evolutionary relationships?
the similarities between human kidneys and the animals kidneys are that they both serve the same purpose, other than the creatures without back bones. they both have the ureta conected, and both have the renial vain connected, there are many other reasons of similarities, if this isn't enogh, try google p.s. : srry about the misspells
The similarities are fairly superficial. Both animal welfare and animal rights are concerned with how animals are treated and advocate for ending abusive practices such as dog fighting. However, the two disciplines are very different in their philosophies and their ultimate goals. Animal welfare focuses on the ethical integration of animals and the use of animals into human society - while living, animals should be subjected to the minimum amount of discomfort. Animal rights, however…
One major difference between adult and embryonic stem cells is their different abilities in the number and type of differentiated cell types they can become. Embryonic stem cell can become all cell types of the body because they are pluripotent. Adult stem cells are thought to be limited to differentiating into different cell types of their tissue of origin.
Actually, yes. Fetal development is the last seven months of development in a human, so they are more likely to look like humans at any given point. The embryonic stage of development is in the beginning when the human is more likely to appear similar to other developing mammals. Differences become apparent only during later stages. Images of human & pig embryos (for comparative purposes) are available on the web, so that you can see…