What is a muscle fiber? the myosin that makes up the contractile unit of a muscle cell the connective tissue outer covering of a muscle a group of muscle cells that make up the same muscle group a single cell of a muscle?

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Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels