The gestation period of elephants is about
- A$11$ months
- B$10$ months
- C$15$ months
- D$22$ months
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Identify the structure shown in the process of human embryonic development.
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View SolutionThe blood flowing in the umbilical cord is:
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View SolutionWhich of the following is false for progesterone?
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View SolutionIn which order do the three germ layers appear during embryonic development?
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View SolutionMatch the following with respect to stages of embryonic development in human.
Column $I$ Column $II$ $a$. Fully formed morula $i$. By end of $7^{\text{th}}$ day after fertilization $b$. Fully formed blastocyst $ii$. $15$ days after fertilization $c$. Completion of implantation process $iii$. By end of $4^{\text{th}}$ day after fertilization $d$. Fully formed gastrula $iv$. By end of $10^{\text{th}}$ day after fertilization
Choose the correct option-
| Column $I$ | Column $II$ |
| $a$. Fully formed morula | $i$. By end of $7^{\text{th}}$ day after fertilization |
| $b$. Fully formed blastocyst | $ii$. $15$ days after fertilization |
| $c$. Completion of implantation process | $iii$. By end of $4^{\text{th}}$ day after fertilization |
| $d$. Fully formed gastrula | $iv$. By end of $10^{\text{th}}$ day after fertilization |
Choose the correct option-
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