A student wants to find out if aspirin helps keep cut flowers fresh. She wants to set up an experiment to test this, but first,
she must set up the hypothesis. Which statement is the best hypothesis to test the question she is asking? If an aspirin is added, then it will keep the flowers fresh. If an aspirin is added to the water, then it will keep the flowers fresh. If an aspirin is added to the water in a vase of daffodils, then the flowers’ wilting time will not change because aspirin has no effect on the wilting time of daffodils. If an aspirin is added to the water in a vase of daffodils, then the flowers will remain fresh longer because aspirin lengthens freshness.
C. If an is added to the water in a vase of daffodils, then the flowers' wilting time will not change because aspirin has no effect on the wilting time of daffodils. This is the correct answer
Homeostasis refers to the body's ability to maintain certain things with
the body at the same level, this is demonstrated for example in
warm-blooded animals having a constant temperature.
