The perception of a stressor triggers this area of the brain to initiate the stress response.

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#Question id: 11685

#Unit 7. System Physiology – Animal

After birth, the pressure in the pulmonary artery decreases greatly. What is the cause of this?

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#Question id: 23632

#Unit 13. Methods in Biology

Which formula may be implemented to determine the probability (P) that a library of a given size contains a particular clone? (N is the number of recombinant clones in the library; n is the frequency of occurrence of a desired clone)

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#Question id: 5219

#Unit 11. Evolution and Behavior

What is it that can be duplicated in a genome?

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#Question id: 11981

#Unit 10. Ecological Principles

A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other.  Which of  the  following  would  be  an  ultimate  cause  of  the  male  cats? response  to  the  female?  s urinating behaviour?

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#Question id: 7302

#Unit 5. Developmental Biology

Match the following level of microRNAs in Arabidopsis (Column II and III) with their Phases (Column I)

Phases (Column I)	microRNAs (Column II)	Level of microRNAs (Column III)
A. Juvenile vegetative phase	i. miR156	a. Low
B. Adult vegetative phase	ii. miR172	b. High
C. Reproductive phase

Which of the following combination is correct?