The correct answer is antheridium. <span>An antheridium is a haploid organ which produces and contains male gametes called antherozoids or sperm. It consists of sterile cells (support and protective structure) and spermatogenous tissue which gives rise to spermatids via mitotic cell division. In some bryophytes, the antheridium is located on the apex of an antheridiophore, a stalk-like structure.</span>
The carbon atoms in saturated fatty acids are linked entirely by single C-C bonds; unsaturated fatty acids contain one or more double bonds. Double bonds cause molecules to bend, and they can pack less tightly.
