Adaptive radiation
occur(s) when a species gives rise to many new species after colonizing a region with diverse habitats.
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Answer:
Option (2).
Explanation:
Zygote is formed by the fusion of the male and female gamete during the process of sexual reproduction. The zygote undergoes further development inside the female womb.
The embryonic period starts from the third week after the conception. The important organs and structure development occur during the embryonic period. The formation of three germ layers occur in this period.
Thus, the correct answer is option (2)
Crystalloids are aquous solution of mineral salts or other water soluble molecules
colloids contains larger insoluble molecules such as blood and gelatin.
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Answer:
75 grams of salt are added to 100 ml of water
Explanation:
