Short Answer
Animals having radial cleavage (echinoderms)also show a type of development,called __________ _________,in which separated blastomeres can develop into complete and normal organisms.
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Q19: The neural tube of vertebrates develops by<br>A)folding
Q20: Superficial cleavage is found in<br>A)amphibians.<br>B)mammals.<br>C)sea stars.<br>D)insects.
Q21: Outline the significance of the amniotic egg.Discuss
Q22: In an effort to teach the derivatives
Q23: Which is NOT an extraembryonic membrane?<br>A)Amnion<br>B)Placenta<br>C)Yolk sac<br>D)Allantois
Q25: Mosaic development in animals<br>A)is a type in
Q26: At which stage do we begin to
Q27: Distinguish "germ cells" and "germ layers."
Q28: The product of cleavage in a zygote
Q29: Contrast mosaic development with regulative development and