High density Nebula, And condenses into a huge globule of gas and dust and contracts under its own gravity
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1.Phospholipids provide barriers in cellular membranes to protect the cell, and they make barriers for the organelles within those cells. Phospholipids work to provide pathways for various substances across membranes.
2.Carbohydrates are organic compounds that are organized as ring structures and are always composed of the elements carbon, hydrogen, and oxygen. Carbohydrates are truly hydrates of carbon because the ratio of hydrogen atoms to oxygen atoms is always nearly 2:1, as in H2O.
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It is the sun in most ecosystems as the light energy is fixed during photosynthesis and then transferred to other organisms via the food chain.
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Independent is adjusted and kept the same
dependent is measured
controlled is manipulated and changed
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Limestone. Hope this helped!!!!
