Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 56859
TLS Online TPP Program

#Question id: 12604

Which of the following ecosystems would likely have a larger net primary productivity/hectare? 

#Unit 10. Ecological Principles
  1. Open ocean because of the total biomass of photosynthetic autotrophs
  2. Grassland because of the small  standing crop biomass that results from consumption by  herbivores and rapid decomposition
  3. Tropical rainforest because of the massive standing crop biomass and species diversity. 
  4. Cave due to the lack of photosynthetic autotrophs
More Questions
TLS Online TPP Program

#Question id: 1584

#Unit 4. Cell Communication and Cell Signaling

Which cell type interacts with both the humoral and cell-mediated immune pathways?
TLS Online TPP Program

#Question id: 12252

#Unit 10. Ecological Principles

In a study of interactions between plants, ants and caterpillars, the following experimental treatments were imposed: i) Control (both ants and caterpillars are present); ii) Ant removal; iii) Caterpillar removal; iv) Ant and caterpillar removal. Plus (+) indicates presence and minus (-) indicates absence on plants. The results for plant performance (growth) from this experiment  are shown in the figure below. Plant performance in all treatments were significantly different from each other. Based on these results, which of the following inferences is correct?
TLS Online TPP Program

#Question id: 14738

#Unit 4. Cell Communication and Cell Signaling

Choose correct statements about Muscarinic receptors;
a. An acetylcholine analog, In activated condition, these receptors slow the rate of heart muscle contraction.
b .This type of receptor is coupled to a Gαi protein, and ligand binding leads to the opening of an associated K+ channel.
c .The subsequent influx of K+ ions from the cytosol causes an increase in the magnitude of the usual inside-negative potential across the plasma membrane that lasts for several seconds. 
TLS Online TPP Program

#Question id: 16479

#Unit 12. Applied Biology

Organotypic cultures are type of cultures which
TLS Online TPP Program

#Question id: 23993

#General Aptitude

Suppose some students indulge in porno graphic painting in the school's toilets and other places on walls and you nab a student busy with the work, what option will you prefer with the students?