LDL (low-density lipoprotein) contains

a. protein, triglyceride, phospholipids and cholesterol
b. phospholipids and cholesterol
c. protein and cholesterol
d. protein and triglycerides

The correct answer is " a"

LDL contain protein,triglycerides,phospholipid and cholesterol.

Explanation:

Low density lipoprotein,or LDL,are complex aggregates of lipids and protein.Their function is to transport lipids (fats) around the body,in the bloodstream,and to the cells where its required.Apart from this,it also carries triglycerides,phospholipids and fat soluble vitamins.

Lipoprotein is composed of a hydrophobic core that is made up of polyunsaturated fatty acids and cholesterol molecules,along with a lipid membrane that contains protein called apolipoproteins.

There are 4 major classes of lipoprotein:

•chylomicrons

•very low density lipoprotein(VLDL)

•high density lipoprotein (HDL)

•low density lipoprotein(LDL)

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.