Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 31339
TLS Online TPP Program

#Question id: 12567

Which of the following is true about the current research about forest fragmentation?

#Unit 10. Ecological Principles
  1. Fragmented forests support a greater biodiversity because they result in the combination of forest- edge species and forest interior species.
  2. Fragmented forests support a lesser biodiversity  because the  forested- adapted species leave,  and  only the edge and open- field species can occupy fragmented forests.
  3. Fragmented forests are the goal of conservation biologists who design wildlife preserves
  4. Harvesting timber that results in forest fragmentation results in less soil erosion.
More Questions
TLS Online TPP Program

#Question id: 16113

#Unit 7. System Physiology – Animal

Which of the behavioural components may not contribute by reducing the exposure of skin to the cold?
TLS Online TPP Program

#Question id: 16114

#Unit 7. System Physiology – Animal

Which of the following hormones are thermogenic?
TLS Online TPP Program

#Question id: 16115

#Unit 7. System Physiology – Animal

Cold environmental temperatures:
TLS Online TPP Program

#Question id: 16116

#Unit 7. System Physiology – Animal

Which of the following hormones acts synergistically with sympathetic nervous system?
TLS Online TPP Program

#Question id: 16118

#Unit 7. System Physiology – Animal

Following statements are regarding to the heat production by the activation of sympathetic nervous system.
A. Activation is stimulation of β receptors in brown fat, which increases metabolic rate and heat production.
B. Activation is stimulation of α2 receptors in brown fat, which increases metabolic rate and heat production.
C. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasoconstriction. Vasoconstriction reduces blood flow to the surface of the skin.
D. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasodilation. Vasodilation reduces blood flow to the surface of the skin.
Which of the following combination is correct?
TLS Online TPP Program

#Question id: 16119

#Unit 7. System Physiology – Animal

Following statements are regarding to Shivering, which is the most potent mechanism for increasing heat production in the body. 
A. Cold environmental temperatures activate centers in the posterior hypothalamus during shivering, which then activate the α and γ motoneurons innervating skeletal muscle. 
B. Shivering involves skeletal muscle contracts rhythmically, generating heat and raising body temperature.
C. Shivering involves stimulation of Na+-K+ ATPase and raising body temperature.
D. Shivering involves stimulation of β receptors in brown fat, which increases metabolic rate and heat production.
Which of the following combination is correct?