Answer:
Most of the cholesterol molecule in non-polar and therefore associations with the non-polar fatty acid tails of the phospholipids. However, the hydroxyl group (-OH) on cholesterol carries a negative charge and therefore associates with the polar environment of water either inside the cell or outside.
Explanation:
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Explanation:
Echinoderms belong to a very diverse phylum of marine-dwelling invertebrates, which have integral roles in salt water aquatic ecosystems. They comprise brittle stars, starfish, sea-urchins, sand dollars, and sea cucumbers. They have distinct characteristics, they:
- are only marine animals.
- show bilateral symmetry as larvae, and radial symmetry as adults
- show three layers (germ)
- show complex-level organisation, i.e. organs are seen
- have a fluid-filled body cavity
Learn more about other phyla at brainly.com/question/9504034
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An example of inertia could be when you are in a car and it stops. You know how your body suddenly jumps forward? That's inertia. Inertia is the tendency of a body to resist a change in motion or rest. In the same way, you jump backward when the car starts moving forward. So if you tried to play soccer or baseball without inertia, it would be difficult to score a goal or home run as the ball would try to resist changing direction.
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.
Every time I see natural selection, I hear The Horrible Histories song.https://www.youtube.com/watch?v=aZETITM2IPg
Because of the fact that female mammals have chromosomes from both parents (from the father and from the mother) and all cells have the same inactivated X chromosome female mammals are considered to be mosaic <span>of the maternal and paternal cells.</span>