Bacteria have a unique shape that likely only evolved once. This shape is the a. coccus. b. diplococcus. c. spirochete. d. bacillus.

a. coccus

Explanation:

Coccus refer to a spherically shaped bacterium. Their shape can only be determined by the use of a microscope. When coccus bacteria reproduce, they give rise to other patterns. Types of coccus bacteria include staphylococcus, enterococcus, streptococcus.

The coccus bacteria cause about one third of bacterial illnesses. They can also be classified according to their different reaction to gram stain, that is gram positive and gram negative.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation: