Answer:
Competition. Additionally, with competition comes <u>survival of the fittest</u>.
Explanation:
Competition is formed when more than one species must fight for the same resource/commodity.
Prokaryotes are defined by their lack of membrane bound organelles, so the reason prokaryotes don’t have them is that any cell that does have membrane-bound organelles would, by definition, not be called a prokaryote, because that is what humans have arbitrarily defined a prokaryote to be.
A more interesting question might be why cells with membrane-bound organelles evolved on earth, as far as we know, only once, among the eukaryotes, and why no other group among either the bacteria or the archaea, the two great prokaryotic groups who together make up over 2/3 of all life on earth, ever evolved membrane bound organelles.
That question takes us all the way back to the origin of eukaryotes themselves in an endosymbiotic merger between a bacteria and an archaean, and is a topic that would fill multiple books.
A very simplified answer is that, in order to support membrane-bound organelles a cell requires an active cytoskeleton and an internal membrane system, and supporting those two features requires a lot if energy, which eukaryotic cells produce using multiple mitochondria. Prokaryotic cells lack mitochondria and cannot produce energy at a fast enough rate to support such “expensive” adaptions.
Answer:
With regard to bone decalcification secondary to hypocalcemia, what an endocrinologist and an orthopedist have in common is that they both focus on calcium levels.
Explanation:
Endocrinology and traumatology are two different medical specialties, however they can together treat a person with a metabolic disorder affecting the bones.
In the case of a person with thyroid problems, where probably the parathyroid glands are affected, there are low levels of calcium in the blood —hypocalcemia— which affects the bones secondarily by decalcification, both the endocrinologist and the traumatologist will coincide in the treatment of the serum calcium levels:
- <u>Endocrinologist</u> will treat the hormonal problem that produces low calcium in the blood.
- <u>Orthopedist</u> will indicate a calcium replacement treatment to improve the levels of the mineral in the blood, and restore the calcium lost by the bones.
The joint treatment of both specialists can guarantee the recovery of a patient with problems in the metabolism of calcium.
The answer is A. Greenhouse Gases.
Greenhouse gases are a result of using non renewable energy sources like burning crude oil. Greenhouse gases are bad for our planet, as these gases trap the heat in our atmosphere - thus making our planet hotter than usual. Example of greenhouse gases are methane, ozone and nitrous oxide.
Answer:
Glycolysis produces pyruvate and ATP
Explanation: