TLS Online TPP Program

#Question id: 10832


Which of the following is an example of a plant chemical defence?

#Section 2: Evolution
  1. Primary compound
  2. Secondary compound
  3. Cactus spine
  4. All of the above
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TLS Online TPP Program

#Question id: 10636

#Section 2: Evolution

The demographic transition model depicts demographic changes from high- to low-level births and deaths in five stages


Stage 1 is characterized by total population numbers are low and the high birth rate is balanced by the high death rate.

B) Stage 2 is characterized by high population growth rate is results of high birth rate however, decline death rate

C) Stage 4 is characterized by decline in the proportion of the population in the reproductive age group and these changes stabilizes population size

D) Stage 3 is characterized by falling birth rates and death rates and population growth rate is zero due to the less numbers of people in the reproductive age group

TLS Online TPP Program

#Question id: 16876

#Section 3: Mathematics and Quantitative Ecology

For a random sample of 9 women, the average resting pulse rate is x = 76 beats per minute, and the sample standard deviation is s = 5. The standard error of the sample mean is

TLS Online TPP Program

#Question id: 11500

#Section 2: Evolution

The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following?

TLS Online TPP Program

#Question id: 10688

#Section 2: Evolution

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000           KB = 1200    α of B= 1     β of A= .5       rB= .5         r A= .3                

AN= 500                  BN= 200

According to the Lotka-Volterra model, what is growth rate of species A?

TLS Online TPP Program

#Question id: 15723

#Section 2: Evolution

Neutral theory of molecular evolution of is given by,