Samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle into the subarachnoid space, usually between the third and fourth lumbar vertebrae.
CSF (Cerebrospinal fluid) is made up of tissue that lines the hollow spaces in the brain, and that hollow space is known as ventricles. This fluid flows in and around the human brain and spinal cord in order to provide cushion them from injury and provide nutrients.
Subarachnoid space consists of the cerebrospinal fluid (CSF), major blood vessels, and cisterns. The main function of the subarachnoid space is to protect CSF which cushions the brain and the spinal cord, and It also provides nutrients and removes waste.
Learn more about subarachnoid space here
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Yes because they are still the same species so they can reproduce
Answer:
true
Explanation:
The value of gene frequency always exists between 0 and 1.
For example, if all of the alleles in the pea plant population were tall alleles (represented as “T”) and none of the alleles were dwarf alleles (represented as “t”), then the “T” allele frequency would be 100% or 1, and “t” allele frequency would be 0% or 0.
encyclopedia of animal cognition and behavior
It has been projected that by 2025 b. 2 out of 3 people will suffer from water shortages.
The problem of shortage of water will happen to the altered weather patterns, depletion of ground water, pollution of water, and due to demand-supply problem in increased population sizes of humans. The present scenario is emphasizing more on the sustainable use of water for agricultural and industrial purposes to promote water conservation. This will reduce the proportion of affected people in the future.
