Answer:
As the earth spins on its axis, producing night and day, it also moves about the sun in an elliptical (elongated circle) orbit that requires about 365 1/4 days to complete. The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons. At different times of the year, the sun's rays hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer. Without the tilt of the earth's axis, we wouldn't have seasons.
Explanation:
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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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Answer:
A. CRISPR sequences in bacteria resemble those from bacteriophage and plasmid DNA. (The CRISPR sequences are derived from previously invading bacteriophages and pladmids.)
B. For reverse genetic studies, CRISPR /CAS can be used to replace wild type alleles with mutant alleles which can knock out the function of target genes. (CAS 9 introduces double strand break (DSB) in the target sequence which is then repaired by non homologous end joining (NHEJ). NHEJ causes deletion, insertion or frame shift mutation leading to knock out of the target genes.)
C. CRISPR is a bacterial sequence in the bacterial chromosome. ( The sequences are derived from bacteriophages that had infected the bacteria defore.)
D. The guide RNA guides CAS to specific DNA sequences. ( The guide RNA directs CAS nuclease to the target sequences for editing.)
E. The CRISPR/CAS system was discovered in bacteria, and it's natural function is the equivalent of an immune system in bacteria for remembering viral infections and for attacking viral DNA in future infections. (The CRISPR/CAS system provides acquired immunity to bacteria.)
Explanation:
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Answer:
The entire body.
Explanation:
The entire body would be effected, because without a digestive system you would have no ability to get the nutrients and sugars in food, and you would die.
