Ms. Bradley’s class is doing a science experiment in class today. During the experiment you will need to record the smell the fumes from some of the chemicals. According to safe practices for laboratory experiments, what should you do when smelling the fumes? Add water to the chemicals before smelling them.
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Inhale the fumes directly.
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Heat the chemicals to boiling before smelling.
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Cup your hand and waft the fumes towards your nose.

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.