The answer is biomagnification. <span>Bioaccumulation</span> involves <span>the
build-up</span> of a pollutant from the environment to an organism in a food
chain. Biomagnification refers to the tendency of pollutants to concentrate as
they move from one trophic level to the next. The substances become
increasingly concentrated in tissues or internal organs as they move up the
chain.
essential fatty acids
cell membrane
Explanation:
When a bear is unable to find meat it will have a much lower fat intake and this will limit its supply of essential fatty acids which affects the cell membrane and normal body functions.
- Meats are good sources of proteins and fats and oil.
- The fat and oil is processes by the bear in the digestive system into fatty acids.
- Fatty acid are essential materials that are used in making the cell membrane.
- The cell membrane is rich a phospholipid layer that keeps the shape of the cell intact.
- When fatty acid is lacking, the cell will suffer and the cell membrane can collapse.
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One evolutionary event important for plants was the development of the atmosphere and oxygen and carbon dioxide since plants take in carbon dioxide and give off oxygen. The development of photosynthesis was key to taking advantage of this aiding in the ingestion of carbon dioxide and the respiration of oxygen. Also, the development of soil for plants to grow in is related to the evolution of landforms as for example the flooding of the banks of major rivers to deposit silt useful as a growing medium or the melting of glaciers forming glacio-fluvial soil deposits helped to provide such growing mediums. Natural selection also played a role in plant evolution so that varieties of each plant species developed and the varieties favorable to the environmental conditions would thrive. Also, biodiversity or the development of many types of plants adapted to their environment and to each other was very important to the development of say a rainforest or a tropical jungle.
The answer is false <span>The reason why main heart failures and blood vessel clottage is mainly caused by the accumulation of lipids specifically bad cholesterol. </span>
Answer:
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Explanation:
