<span>Gram-negative bacteria have a cell wall that is <u>thin</u> and does not accept the stain, making it appear <u>red or pink</u><u />.
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</u>Gram staining is used for differentiation gram-positive from gram-negative bacteria based on the characteristic of their cell wall. Gram-negative bacteria have a thinner cell wall than gram-positive bacteria. In this staining, bacteria are first stained with crystal violet dye. Only gram-positive bacteria will be violet colored because they can retain the dye thanks to their cell wall. The second staining with fuchsine or safranin will give the red or pink color to the gram-negative bacteria. <u>
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When a person watches television for a long stretch of time in order to observe and then, record the total aggressive incidents occurring during that period is a good example of the rate measure of the behavior. The rate measure refers to the measure of the frequency of the concerned events occurring in the defined period of time. Since, the person is looking for the aggressive behavior on television during his four hour watching, this is a rate measure.
Explanation:
People who have 5 fingers on each hand are known as normal people
Answer:
This is true.
Explanation:
More commonly, an X chromosome will die and get replaced by a Y chromosome (all humans start off as females). When this occurs, the substitute Y chromosome causes changes in the zygote to occur; they begin developing male genitalia (i.e. penises, testicles, prostates, etc.).
The model demonstrating the importance of solar energy for life on Earth in which the student should make is a model of a local food web
All food chains begin by receiving the energy of the sun. This energy is captured by plants which are the producer link in the chain. Plants are able to utilize the light energy from the sun to produce food such as sugar from carbon dioxide and water.
