Answer:
Fossil fuels
explanation: Coal is one type of fossil fuel. This is a nonrenewable energy source whose extraction often damages the environment. Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy
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Answer:
In order for a polar compound to enter into the hydrophobic space of the phospholipid tails, it would need to break the many <u>polar covalent bonds</u> bonds it has formed with the water and enter into a space where these bonds cannot form. Therefore, it is not a repelling action but a "lack of attraction".
Explanation:
<u>Water as polar solvent and the phospholipids:</u>
Water is very different on the molecular and that is due to the more polar nature, which is caused by the hydrogen bonding with in a H₂0 molecule. As the water molecules forms bonds with the other molecules in a specific formation of unequal polarities on its molecules. As the molecules have an unequal amount of charges present on it. For, the phospholipids they have two hydrophobic tails and the hydrophilic head. Through which they form most of the cell membrane structures.
In order to add any polar molecule to the hydrophilic head of the phospholipid there are many covalent bonds which are required to be broken, as these bonds include the covalent bonds found inside the molecular level. While, the hydrophobic tails of the molecules can't arrange themselves to form the bonds with the polar molecules more frequently.
Cell - Different cells make up organs
Cell Membrane - Protect the cell
Cytoplasm - Contains all organelles and cell parts
Nucleus - Contains the cell's genetic material
Nuclear Membrane - Allows small molecules, ions, and/or proteins to move in and out of the necleus
Ribosomes - Where RNA is translated to protein
Endoplasmic Reticulum - A manufacturing or packing system for the cell
Golgi Bodies - Gathers simple molecules and combines them to be more complex
Mitochondria - Energy factories of the cell (Side note: Always remember "Mitochondria is the powerhouse of the cell")
Lysosomes - Digest excess or worn organelles, food particles, and viruses or bacterias
The troposphere is B.The stratosphere is A.The mesosphere is C.The thermosphere is D.
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion.