A more complex interconnected system of food chains is a consumer-resource system.
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Dideoxynucleotides are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing. They are also known as 2',3' because both the 2' and 3' positions on the ribose lack hydroxyl groups, and are abbreviated as ddNTPs.
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selective breeding
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A
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The enterobacteriaceae group (enteric bacteria) are bacteria found only in the intestine. Enteric literally means intestine. They are gram negative bacilli that are non- spore forming, most are motile. The consist of many genera and strains that colonize the small and large intestine and includes members of the non-pathogenic autochthonous (bacteria that are native species of the intestine, they are neither hurting nor helping the system) microbiota as well as pathogens. Examples of the pathogens include some strains of <em>Escherichia coli</em>, <em>Salmonella typhii,</em> <em>Shigella spp.</em> Examples of the non-pathogenic enteric bacteria includes <em>Lactobacillus acidophillus</em> and some strains of Escherichia coli.
Land plants are evolved from green algae.
Green algae called charophytes are coolest relatives of land plants.
It is believed that land plants are the most closely related to green algae, more specifically, a group of green algae referred to as charophyceans. Not only do both land plants and green algae produce chlorophyll a and b, but other evidence suggests that there is a relationship as well.
4 key traits that appear in nearly all land plants but are absent in the charophytes.
-Diploid embryos
- The ability to photosynthesize
-Apical meristem
-Walled spores produced in sporangia.
- Multicellular haploid and diploid generations
-Multicellular gametangia
Learn more about land plants and green algae here:
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