Biochemistry because it does not have to do with the erosion
Homologous structures are the structures with similar anatomy, embryology, morphology, and genetics but dissimilar functions. Analogous structures are the structures that are similar but anatomical dissimilar doing the same function.
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What is Cladogram?</h3>
A cladogram is a diagramic representation that shows relationships between species. This relationships is based on observable physical characteristics. As the below diagram representing the cladograph of table.
Species A is most primitive species in fossils records. Fossils are the or traces of remains, preserved remains, of ancient organisms.
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In rheumatoid Arthritis patients, NK cell levels were abnormally elevated, possibly due to high serum levels of IL-2.
Rheumatoid arthritis (RA), is an autoimmune disease that means our own immune system attacks self healthy cells in the body by mistake, causing inflammation (painful swelling),mainly attacks the joints.
The given study is to investigate the relationship between serum interleukin-2 (IL-2) levels and disease activity.
This study also showed the relationship between absolute numbers of peripheral lymphocyte subsets, autoantibodies, and associated cytokines in patients with rheumatoid arthritis (RA).
The results showed that the number and percentage of NK cells were positively correlated with serum IL-2 levels so, IL-2 can be a reason for elevated level of NK cells
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Answer:
D. The sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Explanation:
- Sympathetic and Parasympathetic nervous system are two divisions of autonomic nervous system.
- Acetylcholine is a common neurotransmitter released by preganglionic neurons of both systems.
- The post Ganglionic neurons of these two systems release different neurotransmitter.
- The sympathetic nervous system is concerned with 'fight and flight response'
- The parasympathetic nervous system is concerned with 'rest and digest ' response.
The rungs of the double helix in DNA are made up of nitrogenous base pairs: Adenine, Thymine, Guanine, and Cytosine. The correct answer is C.
