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Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..