Answer:
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This suggests that tetanus bacteria produces endospores.
a neap tide is just after the first or third quarters of the moon when there is the least difference between high and low water.
In an experiment, you are only allowed to test for one variable at a time. This means that everything else must be the same or constant for only the one variable to be tested for. If say you were testing if plants grow better with more or less water, you need to keep everything else the same.