Is this statement an observation or inference? "it must be raining outside."

Many dyes and other hair treatments will fluoresce under a certain color (wavelength) of light. In a fluorescence microscope, a beam of light of a certain color is used.

A man has high blood pressure partially due to a high-salt diet. What effect does the increased salt concentration in his blood have on enzyme activity?

List and explain at least 3 of the adaptations that allowed plants to move from water to land.

Which of the following sentences adequately defines a club moss? A. Club mosses are plant-like organisms that have chlorophyll and are nonvascular. B. Club mosses are nonvascular plants that release spores from their conelike tips. C.

What describes a result of the greenhouse effect?

What is the energy of a photon first used to do in photosynthesis?

Select the correct statement regarding chemical synapses. A) Cells with gap junctions use chemical synapses. B) The release of neurotransmitter molecules gives cells the property of being electrically coupled.

How can speciation of plants benefit humans

Is cellulose a fat, carbohydrate or protien

I mineral must be formed by a manufactured process to be considered a mineral. T or F