Which of the following refers to a bone disorder found most often in the aged and resulting in the bones becoming porous and light?
a. osteomalacia
b. osteoporosis
c. rickets
d. paget's disease

The correct answer is option - B) osteoporosis.

Explanation:

Osteoporosis is the group of various diseases in which resorption is more than the bone deposit. In this disease, bones become porous and light that leads to bones to become fragile and prone to fractures.

The composition is not changed and the matrix remains the same however the mass of the bone decline. This is found more often in aged people.

Thus, the correct answer is option B. osteoporosis.

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

read more on -

explanation: