A 55-year-old man has been diagnosed with Stokes-Adams syndrome. Two minutes after the syndrome starts to cause active blockade of the cardiac impulse, which of the following is the pacemaker of the heart?

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#Question id: 28434

#Unit 5. Developmental Biology

Primitive Streak is homologous to_____

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#Question id: 28435

#Unit 5. Developmental Biology

Primitive Streak is first arises from which area or cells?

TLS Online TPP Program

#Question id: 28436

#Unit 5. Developmental Biology

Primitive Groove is____

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#Question id: 28437

#Unit 5. Developmental Biology

Primitive groove is homologous to_____

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#Question id: 28438

#Unit 5. Developmental Biology

A regional thickening of cells at the anterior end of the primitive streak is termed____

a) Hensen’s node 

b) Primitive Knot

c) Primitive Groove

d) Primitive pit

TLS Online TPP Program

#Question id: 28439

#Unit 5. Developmental Biology

Hensen’s node is functionally equivalent to the which structure of amphibian?