The correct codes are 63267 and 69990.
The codes are given based on the lesion if it is intradural or extradural. In our case here it is extradural cystic structure so that is why it ranges between 63265 to 63268.
We also divide the section of spine depending on where the lesion is being located. Code 63267 describes laminectomy which has evacuation of intraspinal lesion which is found in the lumbar spine.
69990 code documents the use of microscope.
Answer:
Bacteria like E coli, streptococcus
Viruses like Influenza and HIV
Parasites like malaria
I believe the correct answer among the choices presented above is the last option. It is in the Sahara desert that most-likely there is physical water scarcity. This is because it is a desert and it is a characteristic of a desert to have very small or no amount of water. Also, the climate their is very hot.
Answer:
A. Scorpions, ticks, and mites are invertebrates.
They aren't echinoderms, annelids, or vertebrates.
Answer:
A) the diameter of the helix
Explanation:
This is was measured during the 3D structure of DNA proposed by James Waston and Francis Crick in 1953. The x-ray diffraction showed crossed shape of the X-ray films.The DNA appeared as two double strands structure.
The diameter of the DNA double helix is 20 Armstrong.
This diameter is constant because of the complementary pairing of bases.( purines with pyrimidines)
