1 Collagen is most commonly found within the body in the skin, bones and connective tissues. 2  The word collagen is derived from the Greek kolla, meaning glue.  Collagen gives the skin its strength and structure, and also plays a role in the replacement of dead skin cells.
sieve A sieve is a mesh strainer used to separate lumps and clumps from the fine material. Sieves are handy for everything from sifting flour to prospecting for gold â anything where you need to separate the big from the small. If youâre an archaeologist, you've probably used various sorts of sifters and shakers to sieve through the soil to recover even the tiniest artifacts.
Trending Now. Answers. Best Answer: The sieve-tube cells, also known as sieve-tube members, are the more advanced type of conducting cell, and are the only sieve element found in the phloem of angiosperms.[3] The sieve tube is an elongated rank of individual cells, arranged end to end, and functioning to conduct food materials throughout the plant. The sieve areas of these cells are called sieve plates; the pores in sieve plates are generally larger and more variable in size.