#Question id: 10740
#10. Ecological Principles
Change in community structure through time is termed
#Question id: 23393
#Aptitude
#Question id: 746
#1. Molecules and their Interaction Relevant to Biology
Two separate chains of DNA are wound around each other, each following a helical (coiling) path, resulting in:
#Question id: 16121
#7. System Physiology – Animal
Match the following mechanisms (Column I) with their correct example (Column II).
|
Column I |
Column II |
|
A. Heat-generating and heat-retaining mechanisms |
i. increased metabolic rate (thyroid hormones, sympathetic nervous system) |
|
B. Heat-dissipating mechanisms |
ii. vasodilation of blood vessels of the skin
(decreased sympathetic tone) |
|
|
iii. increased activity of sympathetic cholinergic
fibers to sweat glands. |
|
|
iv. shivering |
|
|
v. vasoconstriction of blood vessels of the skin (increased
sympathetic tone) |
#Question id: 23348
#Aptitude