Practice Questions

TLS Online TPP Program

#Question id: 356

How does 0.5 M sucrose (molecular mass 342) solution compare to 0.5 M glucose (molecular mass 180) solution?

#Unit 1. Molecules and their Interaction Relevant to Biology

Both have 6.02 × 10^23 molecules.
Sucrose has 171 molecules, whereas glucose has 90.
Both have 3.01 × 10^23 molecules.
Sucrose has 171 mg/L, whereas glucose has 90 mg/L.

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TLS Online TPP Program

#Question id: 10621

#Unit 10. Ecological Principles

One life history trait that is not characteristic of very small sized organisms is

TLS Online TPP Program

#Question id: 10622

#Unit 10. Ecological Principles

For a species having logistic growth, if K = 4000 and r = 0.25, the maximum growth rate will be

TLS Online TPP Program

#Question id: 10623

#Unit 10. Ecological Principles

What is the population growth per unit of time when r = 0.50, N = 100 and K = 1000. What is value of per capita growth rate when population growing at maximum rate?

TLS Online TPP Program

#Question id: 10624

#Unit 10. Ecological Principles

Limited resources cause tradeoff between investment in reproduction and survival. There is two Animal species with similar size present at same habitat but different their life history as a following.

A Species - Later age at first reproduction

B Species – Large clutch size and low survival of offspring and adult

There is above species should be

TLS Online TPP Program

#Question id: 10625

#Unit 10. Ecological Principles

Find out density of three different fish population by mark recapture method? Following is a density of capture and recapture fish?

Which of the decrease order of their relative abundance?

TLS Online TPP Program

#Question id: 10626

#Unit 10. Ecological Principles

Following is a hypothetical life table of species.