Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.
The centrioles are the barrel shaped microtubules that organize the spindles during cell division.
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The answer is d. all of the above. The amount of nitrogen in the atmosphere can be affected by the inorganic nitrogen fertilizers, sewage treatment plants and pollution coming from factories. Hope this is the answer and this would be of help.
High amounts of saturated salt. Hope this helps!
