Answer:
A
Explanation:
The pulmonary veins carry oxygenated blood from the lungs into the left atrium, then the blood passes through the left ventricle and finally through the aorta, wich carries and distributes oxygen-rich blood to all arteries.
Aquí está la mitad. El sistema tegumentario tiene múltiples funciones en la homeostasis, incluida la protección, la regulación de la temperatura, la recepción sensorial, la síntesis bioquímica y la absorción. Todos los sistemas corporales funcionan de manera interconectada para mantener las condiciones internas esenciales para la función del cuerpo. Use google translate.
are there certain questions to this?
<span>The question is asking us to choose, from a list, which activity can substantially increase the activity level of a person lifestyle. The activity here is the physical activity, so the question is, which of the following would make you most physically active. The answer is walking to school - here you would be using your muscles to move. When you are driving a car or using an escalator, you are using technology to move so you don't have to use physical strength.</span><span />
The answer is B. Melanoma
Melanocytes cells create a brown pigment called melanin and actually melanin protect deeper layer of the sins from the harmful effect of the sun
But for some people, prolonged exposure to the sun make melanocytes create an uncontrollable amount of pigment and create cancer
