Given below are four statements (I-IV) regarding embryonic development in humans. I. Cleavage di...

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Given below are four statements (I-IV) regarding embryonic development in humans.
I. Cleavage divisions bring about considerable increase in the mass of protoplasm.
II. With more cleavage divisions, the resultant blastomeres become smaller and smaller.
III. The blastomeres in the blastocyst are arranged into two layers, i.e. trophoblast and endometrium.
IV. Cleavage divisions result in a solid ball of cells called morula.
Which of the above two statements are correct?
(a) I and III
(b) II and IV
(c) I and II
(d) III and IV
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