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The study of embryonic development is used as evidence for evolution because why?
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Why are adaptations evidence of evolution?
Because adaptations are an observed effect of evolution. They could not happen if evolution did not occur.
Cleavage as part of embryonic development is distinctive because it involves?
cell division by mitosis with little or no growth between successive divisions
What is a homologous structure and what does it show?
== == Homologous provide evidence for evolution because it shows the similarities and how we evolved from the same ancestors
What are some global opinions that support the use of embryonic stem cells use?
I support the use of embryonic stem cells because they can cure a numerous amount of illnesses.
What is so special about stem cells?
they are special because they replace worn out tissue
Is fossil evidence used for the Theory of Evolution?
Fossils can be used as evidence for evolution because they can show the development of a species over a long period of time.
Why are adaptations evidence of evolution?
Because adaptations are an observed effect of evolution. They could not happen if evolution did not occur.
What are the five key evolutionary changes in the animal body plan?
The evolution of symmetry, tissues, a body cavity, patterns of embryonic development, and segmentation (repeated body units). Symmetry is found as radial symmetry (halves of the body mirror each other) and bilateral symmetry (symmetric in every direction). Cells differentiate into tissues which allows for specialized structures and functions. The evolution of body cavities allowed for the evolution of organ systems. There are 2 patterns of embryonic development in bilateraly symmetrical animals: protostomes and deuterostomes. Other embryonic development classifications are cleavage patterns (spiral and radial), determinate or indeterminate development, and coelom formation. With segmented animals, each segment has a set of organ systems. This is advantageous because if one segment is damaged, the animal will not die. Segmentation also allows animals to move more effectively since the segments can move fairly independently.
Why are the ideas about evolution called theories?
Because although there is evidence to support the claims, it isn't possible to prove evolution indefinately.
How are hominid fossils useful in the study of the history of mankind?
Because they are evidence of evolution!
Cleavage as part of embryonic development is distinctive because it involves?
cell division by mitosis with little or no growth between successive divisions
Why are vestigial structures considered critical evidence of evolution?
Vestigial structures are considered evidence, but no more critical than any other line of evidence in Biology and palaeontology. They're considered evidence, not because of their function, but because of the way their morphologies follow the nested hierarchies of biology: the vestigial legs of whales, for instance, have exactly the kind of shape we would have expected them to have if whales had descended from land mammals. The same goes for human tailbones and embryonic branchial ridges, the wings of emus, and so on.
How are embryos used as evidence of evolution?
this is because they have a link with early ancestors of similar structure.
Where we apes?
The theory says we may have been because of evolution evidence and close DNA
Why is it increasingly irrelevant to distinguish between software development and evolution?
because they are so similar
Why did Charles Darwin use selective breeding as evidence for evolution?
Because he wanted to mada fakars
Why is the evidence of evolution worth learning?
Because evolution is the backbone of modern biology. It ties together the various branches of biology. Evolution very much affects modern agriculture and medical science.
