A short break for a household tip on cleaning white resin chairs. We've had most of our white resin chairs for more than a decade--I'd say 14 years at least. After all that time they're still in good structural shape and sturdy and except for the nasty black stains there'd be no reason to throw them away. We've got six that sit out in the weather 24/7/365.
Another common shape of bacteria is the coccus. Cocci are spherically shaped bacteria that organize in several distinct arrangements when in groups: diplococcus, tetrad, sarcina, and staphylococcus arrangements.
Bacteria, which are spherical or ovoid in shape, are called âcoccusâ (plural: cocci) (Figure 2.2). Based on the arrangement of the cells they are of the following types. (a) Coccus: The spherical bacteria cells, called cocci, are present as single individuals. (b) Diplococcus: The cocci are arranged in pairs. (c) Streptococcus: The cocci are arranged in chains, as the cells divide in one plane. (d) Tetrads: The cocci are arranged in packets of four cells, as the cells divide in two plains. (e) Staphylococcus: The cocci are arranged in grape-like clusters formed by irregular cell divisions in three plains.