Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes (endosymbiosis) is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Explanation:
Both mitochondria and chloroplasts are similar to bacteria in size, and like bacteria, they reproduce by dividing in two.
Answer: Myelogram
Explanation:
A myelogram can be defined as the diagnostic imaging test which is usually done by the radiologist. This procedure uses dye and X-rays or computed tomography.
The problems in the spinal cord and muscles, other tissues and nerve are detected by this method.
In case of any any accident or persistent pain in the regions ask for this test to know the exact reason behind the problem.
There are 2 atriums, The left atrium and the right atrium
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Explanation:
if a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, trait B is likely to have arisen earlier because this trait has been replicating and existing in a higher percentage of the population as compared to trait A.
Hope this answer helps :)
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