Does the gut tube epithelium arise from neural crest (ectoderm), mesoderm, or endoderm?
Temparature of liquid helium is about (1) ? 2690C (2) ? 770C (3) ?1960C (4) ?40C
if v use HELIUM & ARGON instead of NITROGEN as a mobile phase what happen in GC SYSTEM ?
Cipla, Reddy Labs,
who named epithelium
how hydrogen or helium is a cooling agent for alternator./ generator of big size.
why helium does not react with other elements?
What are some common methods for helium leak testing a vacuum system?
What are the methods involved to test helium leak testing in a vacuum system?
Explain what are the methods involved to test helium leak testing in a vacuum system?
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