The two major genera of gram-positive bacteria include the , which contains the endospore-forming genera (e. g., bacillus and clostridium), and the which contains some filamentous forms (e. g., streptomyces) that produce exospores.

The two major genera of gram positive bacteria include the Bacilli , which contain the endospore-forming genera (e.g. Bacillus and Clostridium) , and the Cocci , which contains some filamentous (e.g. Streptomyces) that produce exospores.

Explanation:

The two main genera of Gram positive bacteria include:

1) Bacilli (Bacillus) : It is a group of cylindrical or rod shaped gram positive anaerobic or aerobic (some condition) bacteria found in water and soil. Bacillus bacteria can be subdivided on their ability to form spores.

2) Cocci (Coccus) : It is a type of bacterium that have a spherical, ovoid and round shape anaerobic gram positive bacteria.    

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called