of the following is NOTa function thss con be cevity? D. ? car, Il of the above
ID: 3166421 • Letter: O
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of the following is NOTa function thss con be cevity? D. ? car, Il of the above are as a Pydros4atic skeleton. correct 38. Nervous system develops from A) Ectoderm, 8) Endoderm ) Mesoderm D) trophoblast. E) blastoeyct 39. In which of the following bacterial gene transfer methods, Is viral OMA wwotred A) Transcription 8.) Conjugation C) Transduction D) Transformation E). None of the above. 40. in the life cycle of the class Hydrozoa which is the dominant stage? A) Polyp B) Medusa Both A and B. Neither A nor B C) D) C) Scyphozoa. In which of the following types does animal embryo develop within the uterus and is nourished by yolk-sac? A) Oviparous. B) Viviparous. C) Ovoviviparous. D) All of the above. E) None of the above 41. 42. What is characteristic of ecdysozoans? A) a pseudocoelom B) agile, speedy, and powerful locomotion. C) the diploblastic condition. D). some kind of exoskeleton, or hard outer covering E) a deuterostome condition.Explanation / Answer
38) Answer: A) Ectoderm
Neural tissue arise from one layer called the ectoderm
39) Answer C) Transduction
It refers to DNA transfer between bacteria through a virus carrier i.e In transduction, a media like virus is required
between two bacterial cells in transferring genes from one cell to the other.
40) Answer C
The dominant stage of the hydrozoan life cycle is the polyp, however most species exist as medusae at some point in their life cycle.
41) Answer B
Viviparous: the embryo develops within the uterus and is nourished through a yolk sac.
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