Which is not a direct precursor of pyrimidines in their de novo biosynthesis?

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#Question id: 20268

#Unit 7. System Physiology – Animal

Choose correct statements about synthesis and processing of antidiuretic hormone and oxytocin.

a. ADH and oxytocin are homologous nonapeptides (containing nine amino acids).

b. Are synthesized in the supraoptic and paraventricular nuclei of the hypothalamus respectively.

c. The ADH neurons have their cell bodies primarily in the paraventricular nuclei.

d. The oxytocin neurons have their cell bodies primarily in supraoptic nuclei of the hypothalamus.

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#Question id: 22961

#Unit 7. System Physiology – Animal

What is the receptor class of the calcium-sensing receptors in the parathyroid gland?

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#Question id: 19020

#Unit 9. Diversity of Life Forms

The main way that pine trees disperse their offspring is by using 

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#Question id: 12550

#Unit 10. Ecological Principles

In order to construct a reproductive table for a sexual species, you need to

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#Question id: 12796

#Unit 10. Ecological Principles

In which of the following terrestrial biome pairs are both dependent upon periodic burning?