Biology, 06.10.2019 10:30 shannydouglas
Choose the answer that places the following key steps of skeletal muscle contraction into their appropriate order 1. acetylcholine binds receptor. 2. acetylcholine is released from neuron. 3. calcium ions released by sarcoplasmic reticulum. 4. sarcolemma action potential is propagated. 5. sodium enters the muscle cell.
Answers: 3
Biology, 21.06.2019 19:00
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
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Biology, 22.06.2019 06:30
Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide
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Biology, 22.06.2019 07:30
Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra
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Biology, 22.06.2019 08:00
Which feature of a human community is similar to a niche in a biological community
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Choose the answer that places the following key steps of skeletal muscle contraction into their appr...
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