'The best answer is a lava flow. Primary succession happens in lifeless areas or regions where soil is not capable of sustaining life which may be caused by lave flows, retreating glaciers or newly formed sand dunes. It is one of the two types of biological and ecological succession.
Answer:
a cilium
Explanation:
The cilium is cytoplasmic structures attached to the plasma membrane of cells, originating from the prolongation of centrioles, consisting of motor proteins (dyneins) forming a set of microtubules.
The length is varied, with the cilium being shorter and larger on the cell surface than all the other locomotor structures that cells may possess.
The function performed by the cilium is basically locomotor, like the protist and sperm unicellular organisms. However, cilium is also present in respiratory tract tissues (in the trachea), where they perform defense function (retention and elimination of particles and microorganisms).
Typically, gametes are haploid cells. They only contain a portion of the chromosomes because as they intertwine with the meeting gamete the other half of the chromosome will ideally fit the other half of the cell and fertilization will occur. Moreover, when a sperm or egg cell has already a complete chromosome or is diploid no fertilization will happen.
<span>If I remember correct it effects the SBDS gene, thisproduct is involved in processing the cell's
genetic instructions to create proteins. Ribosome is likely structure in
the cell product of SBDS.</span>