They construct dams and create an ecosystem for other species . Because of their dam building nests become available for birds, fish population increases and waterfowl population goes up
Answer:
The correct answer is C the polar head groups of phospholipid,glycolipid and cholesterol face towards the interior of the bilayer.
Explanation:
Plasma membrane contains various lipid molecules such as phospholipid,glycolipid,sphingolipid and cholesterol.The polar head groups of the phospholipid,glycolipid and cholesterol faces the hydrophilic region which is present outside the lipid bilayer and the nonpolar groups faces the hydrophobic region that is present interior of lipid bilayer.
Answer:
B. Salinity
Explanation:
Salinity Definition: of, containing, or resembling common table salt; salty or saltlike
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The 'ground substance' of extracellular matrix is an amorphous gelatinous material. It is transparent, colourless, and fills the spaces between fibres and cells. It actually consists of large molecules called glycosoaminoglycans (GAGs) which link together to form even larger molecules called proteoglycans. These molecules are very good at absorbing water, rather like a sponge, such that 90% of the extracellular matrix is made up of water. This means that the ECM is very good at resisting compressive forces.
