Blood is the fuel that keeps you going! Oxygenated blood is brought to organs and tissues via the arteries, while veins bring deoxygenated blood back to the heart to be replenished. The point is, without the respiratory system your blood would be useless.
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
I think the correct answer from the choices listed above is option 1. The observation that represents evidence for this claim would be that there were <span>more niches and greater stability in the ecosystem. Hope this answers the question. Have a nice day.</span>
Answer: B, beta particle
Explanation:
Negatively charged beta particles are basically electrons
Answer:
<em>The answer to your question is </em><em>O drought</em>
Explanation:
<em>Birds live in place surrounded by water. Therefore meaning that if there was a drought they could be in danger.</em>
<u><em>I hope this helps and have a great day!</em></u>
C) the cell membrane as the cell grows