Astudent wants to find out if aspirin 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.

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes