Answer: produces estrogen - ovaries
Develops the immune system in childhood - thymus
Explanation:
Write about the frontal lobe or the prefrontal vortex.
Blood pressure, exercise, emotional states (such as stress), body size, and caffeine all affect heart rate.
Answer:
Vein: A blood vessel that carries blood that is low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxy-hemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system, which returns blood to the heart.
Explanation:
Answer: option d is correct.
Explanation:
Lanugo is a white, downy hair that covers the fetus's entire body, with the exception of the lips, the palm and the soles of the feet. The appearance of Lanugo in fetus is important in fetus development which usually appear on the fetus body between the fifteenth and sixteenth week during pregnancy. Although, it can also be found in new born babies most especially, when the babies are giving birth to prematurely, where the Lanugo will later disappear after few weeks after birth.
