Your circulatory system consists of your heart, blood vessels and blood, and is responsible for transporting life-giving oxygen throughout your body. When you exercise, your body's need for oxygen increases; the harder you work out, the more oxygen your body demands.
Answer:
All animals are heterotrophic and have cells with no cell wall.
Explanation:
Since animals don't perform photosynthesis or any other process to make food, and don't contain a cell wall, that is what makes them different. Protist can be both autotrophic and heterotrophic and some can contain a cell wall, but most of them don't have cell walls.
Insulin and glucagon are hormones secreted by islet cells within the pancreas<span>. </span>They are both secreted in response to blood sugar levels,but in opposite fashion<span>! ... In </span>response to insulin<span>, </span>these cells absorb glucose out of the blood<span>, </span>having the net effect of lowering the high blood glucose levels<span> into the normal range</span>
It will get darker faster or nothing hop this helps
The answer is B.False.(G1,S,G2,<span>M phase)
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