TLS Online TPP Program

#Question id: 12580


When levels of CO2 are experimentally increased, C3 plants generally respond with a greater increase in productivity than C4 plants. This is because

#Section 5: Applied Ecology & Evolution
  1. C   plants are more efficient in their use of CO2
  2. C   plants are able to obtain the same amount of CO2 by keeping their stomata open for shorter periods of time.
  3. C4 plants don’t use CO2 as their source of carbon.
  4. C3 plants are more limited than C4 plants by CO2 availability because of transpirational water loss.
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TLS Online TPP Program

#Question id: 10622

#Section 2: Evolution

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

#Section 2: Evolution

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

#Section 2: Evolution

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

#Section 2: Evolution

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

#Section 2: Evolution

Following is a hypothetical life table of species.


Following some statement is given

A- Proportional of survive is constant over different age group

B- Greater mortality in young age

C. Follow type II survivorship curve

D. Follow type III survivorship curve

Which of the following above statement is correct?

TLS Online TPP Program

#Question id: 10627

#Section 2: Evolution

Following graph represent mortality rate of population of species A, B and C with their respective Age


There are following organism are correct