Answer:(A) a cylindrical shaped bacteria exhibiting a variety of rod shapes.- pleomorphic.
B) A bend, or 'coma shapped' rod - Vibrio.
C) Long, curved, flexible rod - spirochete.
D) Long, curved rod - Spirillum.
E) A small, cylindrical shaped bacteria with a cocci appearance - coccobacillus.
F) Cylindrical shape - Rods.
G) Round shape - Coccus.
Explanation:
A). A pleomorphic bacteria is the one which is capable of changing it's shape, mode of nutrition and reproduction.
B). Vibrio is the genus of gram-negative bacteria. It posses a curved comma shape. This is responsible for foodborne infections.
C). Spirochete is a helical, rod shaped bacteria. It posses flexible cell wall and a mechanism that helps in motility.
D). Sprillium is a gram-negative bacteria. It has a rigid spiral structure. It has a long curved rod. It is found in the stagnant water and can also be responsible for causing water borne diseases.
E). Coccobacillus is a bacteria which has shape which is in between cocci and rod. These are very short rods which are mistakenly consider as cocci.
F). A bacillus or bacilliform bacteria is a rod shaped bacteria which can be found in different taxonomic groups of bacteria. These have cylindrical shape.
G) A coccus is the shape of the bacteria which can be consider as either spherical, ovoid or round in shape.