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sciencing.com/3-types-bacteria-6918358.html

Some of the oldest known fossils--nearly 3.5 billion years old--are those of bacteria-like organisms. While some bacteria bring disease and death, others are benign or even beneficial, breaking down dead organic matter or producing antibiotics. Bacteria are usually grouped into three categories, classified by shape: spherical, cylindrical and ...

www.thoughtco.com/bacteria-shapes-373278

Bacteria are single-celled, prokaryotic organisms.They are microscopic in size and lack membrane-bound organelles as do eukaryotic cells, such as animal cells and plant cells.Bacteria are able to live and thrive in various types of environments including extreme habitats such as hydrothermal vents, hot springs, and in your digestive tract.

microbiologyinfo.com/different-size-shape-and-arrangement...

Different Size, Shape and Arrangement of Bacterial Cells. When viewed under light microscope, most bacteria appear in variations of three major shapes: the rod (bacillus), the sphere (coccus) and the spiral type (vibrio)

www.answers.com/Q/What_are_the_three_basic_shapes_of_bacteria

Coccus (plural cocci or coccuses) can be used to describe any bacterium that has a spherical shape. It is one of the three distinct types of bacteria shapes, the other two being bacillus (rod ...

www.quora.com/What-are-the-various-shapes-of-bacteria

The three most common bacterial cell shapes are cocci (spherical, from the Greek word for seed/berry), bacilli (rod-shaped, from the Greek word for staff), and spirilla (curved shape, from spiral).There are various ways of subdividing these three overarching shapes mostly based on how they are arranged into multicellular organizations.

biologydictionary.net/bacteria

Bacteria can also be other shapes such as filamentous (long and thin), square, star-shaped, and stalked. This diagram depicts the numerous shapes of bacteria. Bacterial morphology diagram Types of Bacteria. The cell wall also makes Gram staining possible.

www.livestrong.com/.../117677-five-different-types-bacteria

Bacteria are microscopic single-celled organisms that are all around us. They come in many different sizes and shapes, and this is a common way to classify them—by their morphology, or shape and appearance. The three basic shapes of bacteria are spherical, rod shaped and spiral.

www.answers.com/Q/What_are_three_types_of_bacteria

There are many types of bacteria. It depends on what you are looking at as "type". There are cocci, bacilli, spirchetes (among other shapes) all referring to the shape of the bacteria.

quizlet.com/4564678/bacteria-shapes-flash-cards

Bacteria- Shapes. STUDY. PLAY. Terms in this set (...) bacteria - prokaryotic - have 3 main shapes, but come in different sizes too ... types of coccus bacteria. 1. diplococcus 2. tetrads 3. sarcina 4. streptococcus 5. staphylococcus 6. single, solitary. diplococcus. coccus bacteria where 2 cells stick together.

bio.libretexts.org/Bookshelves/Microbiology/Book...

Skills to Develop. List the three basic shapes of bacteria. List and describe 5 different arrangements of cocci. Define and give the abbreviation for the metric unit of length termed micrometer and state the average size of a coccus-shaped bacterium and a rod-shaped bacterium.