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TLS Online TPP Program

#Question id: 10619

Which of the following is incorrect?

#Section 2: Evolution
  1. age-specific rates of survival and fecundity remain unchanged; the population eventually assumes a stable age distribution
  2. Type III survivorship curve is the result of a high initial survival rate, which then falls off abruptly with age as the age-specific mortality rate increases
  3. The natural enemies hypothesis suggests that natural enemies may reduce densities of the strongest prey competitors
  4. There is indirect proportional of relationship between average plant weight and density in populations, referred to as a self-thinning curve
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TLS Online TPP Program

#Question id: 11359

#Section 4: Behavioural Ecology

A predator exhibiting switching behaviour would be expected to underrepresent the prey in its diet (compared to the abundance of prey in the environment) when the prey is at __________ density.
TLS Online TPP Program

#Question id: 3375

#Section 2: Evolution


Evolutionary force

Caused

A

Mutation

i

Increase genetic variation within population 

B

Genetic Drift

ii

Decrease genetic variation within population 

C

Migration 

iii

Decrease genetic variation between  population 

iv

Increase genetic variation between population 

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 16771

#Section 3: Mathematics and Quantitative Ecology

What is the median?
TLS Online TPP Program

#Question id: 4601

#Section 2: Evolution

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects. Which of these would have prevented this evolution of DDT resistance in insect pests?
TLS Online TPP Program

#Question id: 12416

#Section 1: Ecology

A type I survivorship curve describes a population that has relatively