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TLS Online TPP Program

#Question id: 4700

Which of the following is not an observation or inference on which natural selection is based?

#Section 2: Evolution

  1. There is heritable variation among individuals.

  2. Poorly adapted individuals never produce offspring.

  3. Species produce more offspring than the environment can support.

  4. Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less suited.

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TLS Online TPP Program

#Question id: 10622

#Section 1: Ecology

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: 10600

#Section 2: Evolution

Which of the following is not feature of Type II survivorship curve?
TLS Online TPP Program

#Question id: 11175

#Section 4: Behavioural Ecology

Leks
TLS Online TPP Program

#Question id: 16884

#Section 3: Mathematics and Quantitative Ecology

A prospective observational study on the relationship between sleep deprivation and heart disease was done by Ayas, et. al. (Arch Intern Med 2003). Women who slept at most 5 hours a night were compared to women who slept for 8 hours a night (reference group). After adjusting for potential confounding variables like smoking, a 95% confidence interval for the relative risk of heart disease was (1.10, 1.92). Based on this confidence interval, a consistent conclusion would be
TLS Online TPP Program

#Question id: 11516

#Section 1: Ecology

What type of survivorship curve do humans have?