Which characteristic of a phospholipid contributes to the fluidity of the membrane? a its head b cholesterol c a saturated fatty acid tail d double bonds in the fatty acid tail?

The characteristic of a phospholipid that contributes to the fluidity of the membrane is D. double bonds in the fatty acid tail.

Phospholipid simply means the molecules that have hydrophilic phosphate heads as well as the hydrophobic lipid tails.

Phospholipid is vital for the regulation of cellular processes. The fluidity of the membrane for a phospholipid is due to the fact that there are double bonds in the fatty acid tail.

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The answer is D. The double binds in the phospholipids tail ensure that the chains are not well compacted ( because the van der Waals interactions with neighboring hydrophobic chains are not well matched due to kinks in the chains.) hence the membrane is not hard and is fluid.  Cholesterol also intercalated in between the chains in most cell membranes and additionally prevents them from clustering together and stiffening when the temperatures are low.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: