True:
<span>Cell membrane: This cellular structure helps organisms maintain homeostasis by </span><span>controlling what substances may enter or leave cells.</span>
Answer:
a. teh use of a electrophoresis machine after the dna has been processed using enzymes would give the bands shown on the gel
b.the bands from teh jeans and shirt show that the shirt was made from materials taht include teh material the jeans were made from
c. a prosecutor may conclude to the jury that the defendant had blood only on their shirt
I would go with B, It would disrupt the rate of ventilation because the ventilation is the where clean air comes from the lungs, Also the <span>respiratory system is the most important system in the body, It causes air to come in and breath, without it we would die.
I hope I answered your question.
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Your answer would most likely be (c) or the third answer given.
Answer:
4 chemicals
Explanation:
There are mainly 4 steps of gram staining.
1- crystal violet stain drained on the heat fixed slide.
2- then wash the slide and use iodine.
3- then wash the slide with water and use acetone as a decolorizer.
4- then use safranine as a counter stain.
So there are a total of 4 chemicals used named crystal violet, iodine, acetone, and safranine.
