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TLS Online TPP Program

#Question id: 19953

The line spectrum ot two elements is not identical because .

#XL - P Chemistry
  1. they do not have same number of neutrons
  2. they have dissimilar mass number
  3. they have different energy level schemes
  4. they have different number of valence electrons.
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TLS Online TPP Program

#Question id: 5544

#XL - T Zoology

Which embryonic membrane forms the commonly of the placenta?
TLS Online TPP Program

#Question id: 5545

#XL - T Zoology

The placenta functions as a(n):
TLS Online TPP Program

#Question id: 5547

#XL - T Zoology

 Cells that rove from somites form the
TLS Online TPP Program

#Question id: 5548

#XL - T Zoology

Vertebrate lungs are derived from
TLS Online TPP Program

#Question id: 5549

#XL - T Zoology

During initial stages of vertebrate cleavage, successive blastomeres
TLS Online TPP Program

#Question id: 5550

#XL - T Zoology

The vertebrate nervous system is derived from