Latitude and absolute measurement
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)
Answer:
Nutrient limitation occurs when meaningful additions of an essential element in additions of an essential element in biologically available forms cause an increase in the rate of a biological process and/or in the size of an important ecosystem compartment