Polar substances .
u havent given any option
B - Hydrogen Bond
A and D are incorrect as these are bonds either between metals and nonmetals or non metals and non metals. C is incorrect as this term is a joining of sugar molecules.
Hope this helps!
Answer:
Menstruation is one part of a person's menstrual cycle which includes the shedding of the endometrium (lining of the uterus) that occurs throughout a person's reproductive life.
The answer would be pituitary gland.
Completed sentence: Growth hormone is secreted by the pituitary gland while we sleep.
The answer is A because if you want a reliable source of scientific information you should go to an actual scientist at a scientific conference.
