Femur (thigh), Tibia (calf), Patella (kneecap).
The correct answer of the given question above would be option D. The hypothalamus is involved in sleep as a response to decreasing light, the hypothalamus suprachiastmatic nucleus causes the pineal gland to increase production of melatonin. The hormone melatonin is responsible for maintaining the circadian rhythm of the body.
Answer: Capillaries
Explanation: Blood vessels have the same basic structures used to circulate blood of different composition to and away from the heart to the body. Blood vessels are arteries, veins and capillaries. Arteries carry oxygenated blood from the heart to the body and veins carry deoxygenated blood from the tissues to the heart.
Capillaries are the ones that work with body cells for exchange.They collect nutrients and oxygen from the blood to the cell and also collect carbon dioxide and waste from the cell to the blood which is transported to the vein where it travels via the venous system and goes through the heart, then to the lungs for gaseous exchange.
Therefore the enswer is, capillaries.
Answer:
<h2>A shadow is an area where direct light from a relatively small source is blocked by some opaque object. If the source is genuinely the only light around, the shadow will be absolutely black, and will have no colour.</h2>
Answer:
Back in the frontier days there was very little concern about water shortages. People did not have too worry about not having enough water. Today people do have to keep in mind how much water they are using. some people do worry about not having enough water.
Explanation:
Hope this helps
