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Difference between spontaneous generation and abiogenesis
By: Tami Port MS
Spontaneous generation is the debunked idea that life can, on a daily basis, arise from nonliving material. Abiogenesis attempts to explain how life on Earth began.In modern science, it is understood that living things arise from other living things. This is cell theory; the...
Reproduction of bacterial cells
By: Alicia M Prater PhD
Bacteria are prokaryotes. They have a circular genome, usually present as a single DNA plasmid. Bacteria are not specifically sexual or asexual organisms. Binary fission, a form of asexual reproduction, occurs among many bacteria, but some also reproduce sexually via conjugation. Research is still delving...
Physical characteristics of bacteria
By: Alicia M Prater PhD
Bacteria are microscopic prokaryotes – small single-celled organisms that lack a nucleus. Various types of bacteria exist - they can be spherical, rod-shaped or spiral-shaped, require oxygen or die in the presence of oxygen, and some even require another living cell for replication. But there...
The different kinds of bacteria
By: Alicia M Prater PhD
Bacteria are classified in a number of different ways. The traditional and most commonly used classification system is Gram stain, but bacteria are also classified based on shape and other physical characteristics, such as growth requirements. A basic method of differentiating bacteria are as benign...
The most common pathogenic bacteria
By: Alicia M Prater PhD
The most common pathogenic bacteria can vary by community or population, or if considering a particular type of infection. The most common strains also vary by time period based on new or effective treatments and preventative measures. In today’s world, antibiotic resistant bacteria are...
Explanations of bacterial shape, cell arrangement and colony morphology
By: Tami Port MS
Bacteria are unicellular microorganisms found in every habitat on Earth. Nearly all have cell walls composed of peptidoglycan and reproduce by binary fission (cloning of cells). Although many of these microbes are harmless or beneficial to humans, others are pathogenic, causing infectious diseases. * Identification...
By: Joshua Horn - 257112
Prokaryotes are simply organisms that lack any membrane bound organelles in their cellular structure. They are contrasted to eukaryotes, which feature a true nucleus and membrane bound organelles. It is split into two primary domains: bacteria and archaea. They are almost entirely single cellular, though...
By: Matias W.
THE DIFFERENCE BETWEEN BACTERIA AND VIRUSES:Perhaps the most striking difference is that viruses, unlike bacteria, are technically not living organisms. According to the definition of what "life" is (that is, the definition accepted by most scientists) and among other things, a species must be able...
By: C. Hayes
IntroductionFungi are important components of many model systems in evolutionary ecology. Some members of all four phyla of Eumycota have the capacity to form symbiotic associations with diverse and often phylogenetically distant organisms. These relationships span the continuum of mutualism to parasitism and thus they...
By: Allen Teal
Lichens are comprised of a symbiotic relationship between an algae and a fungus. The green or blue-green algae produces food via photosynthesis that the fungus can eat. The fungus provides an anchor, moisture, and nutrient source for the algae. Together, they look like a flat...

 

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