It seems that you have missed the given choices for this question, but anyway, the correct answer is FEMALE REINDEER. In 1944, reindeer were introduced to an optimal habitat on St. Matthew Island in the Bering Sea. The population grew exponentially until the winter of 1963-64, when the population dropped dramatically. The presence of FEMALE REINDEER may have helped maintain the population of reindeer.
Answer: option C) enables the "let-down" reflex to occur when a woman breastfeeds her baby.
Explanation:
Oxytocin is a hormone secreted by the posterior pituitary gland. It stimulates the contractions of smooth muscles such as
- uterus facilitating childbirth
- ducts of the mammary glands resulting in ejection of milk. Thus, it is also called as milk-let-down-ejection factor.
So, option C is the correct answer
The human brain is the most complex organ in the human body
I'm pretty sure the answer is water :)
Answer: d. return leaked fluids back to the cardiovascular system.
Explanation:
The lymphatic system is a web of vessels and tissues that transfers clear fluid that is called as the lymph. The lymphatic system spreads all over the body and filters and clean up the lymph, abnormal cells and pathogens. The filters traps the foreign particles from the blood. It also promotes the filtered fluid to reach back to the cardiovascular system and distribute to all the parts of the body in the form of blood.
