Which type of organisms can eliminate excess nitrogen by the direct excretion of ammonia?

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#Question id: 31296

#Unit 5. Developmental Biology

If either Nodal or Vg1 signaling is blocked in Xenopus laevis, resulting;

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#Question id: 31297

#Unit 5. Developmental Biology

BMP inhibitors secreted by the organizer at the dorsal side of the embryo, these organizer proteins are named as:

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#Question id: 31298

#Unit 5. Developmental Biology

Drosophila Sog protein is a homologue of which protein in amphibians ?

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#Question id: 31299

#Unit 5. Developmental Biology

In chick embryo, the space between the blastoderm and the yolk is called as:

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#Question id: 31300

#Unit 5. Developmental Biology

During chick development, as cells converge to form the primitive streak, a depression called as:

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#Question id: 31301

#Unit 5. Developmental Biology

Which of the following acts as the equivalent of the amphibian Nieuwkoop center in chick?