When the vertebrate embryo grows into a hollow ball, it is called a

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#Question id: 19349

#12. Applied Biology

An example of promoter that can respond to anaerobic condition is 

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#Question id: 6963

#5. Developmental Biology

During early sea urchin development, which embryonic cells have similar organizer activity to that of amphibian Spemann organizer?

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#Question id: 11484

#7. System Physiology – Animal

Two students studying physiology taste a known "bitter" substance, and both report sensing bitterness. They then sample another substance. Student A reports sensing both a bitter taste and a salty taste, but student B reports only a salty taste. What is the most logical explanation?

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#Question id: 19451

#13. Methods in Biology

We use different lenses in combinations. The total magnification is represented as

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#Question id: 19474

#12. Applied Biology

The cry gene of B. thuringiensis produces a protein, which forms _________ in the bacterial spores.