Which of the following changes tends to increase urinary Ca++ excretion?

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#Question id: 13114

#Unit 2. Cellular Organization

--------- is a biological plastic and non-fibrous material. It occurs only in mature cell walls and is made of an insoluble hydrophobic aromatic polymer of phenolic alcohols.

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#Question id: 6944

#Unit 5. Developmental Biology

Which would lead to a dorsalized embryo? (Recall that genes in Drosophila are named for their mutant phenotype.

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#Question id: 15281

#Unit 5. Developmental Biology

What is morphogen?

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#Question id: 27061

#Unit 1. Molecules and their Interaction Relevant to Biology

According to the Fischer projection which of the following is correct regarding the given fig.

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#Question id: 12794

#Unit 10. Ecological Principles

An area in which different terrestrial biomes grade into each other is known as a(n)