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TLS Online TPP Program

#Question id: 9248

Which of the following is a consequence of biological magnification?

#9. Diversity of Life Forms
  1. Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers.

  2. Populations of top-level predators are generally smaller than populations of primary consumers.

  3. The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers.

  4. Only a small portion of the energy captured by producers is transferred to consumers.
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TLS Online TPP Program

#Question id: 19708

#13. Methods in Biology

In complete heart block
TLS Online TPP Program

#Question id: 1557

#4. Cell Communication and Cell Signaling

which one of these antibody can cross placenta?
TLS Online TPP Program

#Question id: 4930

#11. Evolution and Behavior

Which of the following is the correct sequence of events in the origin of life?

I. Formation of protocells

II. Synthesis of organic monomers

III. Synthesis of organic polymers

IV. Formation of DNA-based genetic systems
TLS Online TPP Program

#Question id: 17287

#13. Methods in Biology

Consider the following grouped frequency distribution : 

What is mean deviation about the median ?  
TLS Online TPP Program

#Question id: 3033

#2. Cellular Organization

Which phase shows the reproduction rate equal to the equivalent death rate?