The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc. The given statement is true and the correct option is B.
<h3>What is endocrine gland's secretion called?</h3>
The secretion of endocrine gland is referred to as hormones, which are chemical messengers that helps in body's control and coordination.
The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc.
Thus, the given statement is true and the correct option is B.
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Key is to lock as D. Substrate is to active site.
There is no element with one valence electron and six energy levels. Only two valence electrons and six energy levels.
Answer:
Calcium
Explanation:
A: Calcium is a group 2 element with two valence electrons. Therefore, it is very reactive and gives up electrons in chemical reactions. It is likely to react with an element with six valence electrons that “wants” to gain two electrons. This would be an element in group 6, such as oxygen.
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)