A: Sperm and egg cells are haploid cells
B: The sperm is haploid, but the egg is diploid
C: Sperm and egg are diploid cells
D: The sperm is diploid, but the egg is haploid
举一反三
- Which of the following is a germ cell? A: cells of the gonads B: intestinal cells C: sperm and eggs D: zygotes
- The cell in the testis that engulfs and digests the residual cytoplasm of sperm is A: spermatogonia B: interstitial cells C: Sertoli cells D: primary spermatocyts
- Insect reproduction may be characterized by all of the following EXCEPT: ( ). A: direct sperm transfer B: copulatory organs C: indirect fertilization D: an ovipositor of the female E: sperm storage in the sperm receptacle
- There is ______ on your nose. A: an egg B: the egg C: egg D: eggs
- What are two traditional Easter egg games? A: the Easter Egg Bump B: the Easter Egg Hunt C: the Easter Egg Roll D: the Easter Egg Crack
内容
- 0
以下代码的输出结果是【】。food_counter = 0def addone(food):if food in food_counter:food_counter[food] += 1else:food_counter[food] = 1addone('egg')addone('milk')addone('egg')print(food_counter) A: {'egg':1, 'milk':1, 'egg':1} B: {'egg':1, 'milk':1} C: {'egg':2, 'milk':1} D: {'egg':2, 'milk':1, 'egg':1}
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Two traditional easter egg games are the Easter Egg Hunt and the Easter Egg Roll.
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A fresh egg will sink and an old egg will ___.
- 3
The function of the testis is to produce sperm and male hormones, the following structure which produces sperm is ( ). A: Tubulus rectus B: Interstitial cell C: Convoluted seminiferous tubule D: Mediastinum testis
- 4
What are you interested in about cooking food ?<br/>We are all interested in () . A: how egg is fried B: how is egg fried C: how egg fries D: how does egg fry