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Sargassum, also called gulfweed or sea holly, genus of about 150 species of brown algae (family Sargassaceae) generally attached to rocks along coasts in temperate regions or occurring as pelagic (free-floating) algae in the open sea. What is the scientific name for seaweed? Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine Click here to continue reading…

Genetic drift is the process of microevolution that describes the random fluctuations in the frequency of alleles within a population. Variants of genes (alleles) will become more or less numerous in a population if, by random chance, more copies of certain genes are passed on to the offspring generation. What makes evolution random? Evolution is Click here to continue reading…

The plumes allowed an in battle “I am here” signal, essentially. Unlike the Greeks who pretty much used them as a way to make their warriors look taller and more imposing, the plumes of the Romans were designed for practicality as is essential in a standing professional army. What is the purpose of a plume Click here to continue reading…

Spray new leaves with fungicide every 10 to 14 days on bushes that showed damage last year. Spray new leaves as they appear on the plant and as they develop. Spray the stems and limbs and remember to get the leaf underside. Fungicide application on a regular basis may get rid of leaf spot if Click here to continue reading…

However, the T-cell receptor differs from the B-cell receptor in an important way: it does not recognize and bind antigen directly, but instead recognizes short peptide fragments of pathogen protein antigens, which are bound to MHC molecules on the surfaces of other cells. How is a T-cell receptor different from a B-cell receptor quizlet? B Click here to continue reading…