Xylem and phloem fiber cells
Answer:
Rocks from retreating glaciers
Answer:
All of the options are correct.
Arboviral diseases are arthropod borne, they can produce central nervous system illnesses, transmitted by mosquito bites and also produce acute self limiting fevers.
Explanation: Arboviruses are viruses that are harboured by arthropods which includes mosquitoes, they have the capacity to cause illnesses which are acute and self limiting(it has the ability to resolve on its own without treatment). It has also been found to cause illnesses to the central nervous system(the brain and the spinal cord).
Answer: Kuru
Explanation:
Kuru are transmitted by prion. This diseases are untreatable and ultimately fatal.
Prions are infectious proteinaceous particle that are neither virus nor do they contain nucleic acid.
They are transmitted by ingestion of the infected nervous system tissues.They are normally found in the healthy brain tissues if this protein is mis-folded into denatured form it can cause disease.
I think the answer is A hope this helps
