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TLS Online TPP Program

#Question id: 3375


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?

#Section 2: Evolution

  1. A -(i) (ii), B -(i) (iv),  C –(ii), (iii)    

  2. A -(i) (iv), B -(ii) (iv), C –(i), (iii)

  3. A -(i) (iii), B -(ii) (iii), C –(i), (iv)          

  4. A -(i) (iv), B -(ii) (iii), C –(i), (iv)

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TLS Online TPP Program

#Question id: 16897

#Section 3: Mathematics and Quantitative Ecology

In a report by ABC News, the headlines read “City Living Increases Men’s Death Risk” The headlines were based on a study of 3,617 adults who lived in the United States and were more than 25 years old. One researcher said, “Elevated levels of tumor deaths suggest the influence of physical, chemical and biological exposures in urban areas... Living in cities also involves potentially stressful levels of noise, sensory stimulation and overload, interpersonal relations and conflict, and vigilance against hazards ranging from crime to accidents.” Is a conclusion that living in an urban environment causes an increased risk of death justified?
TLS Online TPP Program

#Question id: 16898

#Section 3: Mathematics and Quantitative Ecology

A significance test based on a small sample may not produce a statistically significant result even if the true value differs substantially from the null value. This type of result is known as
TLS Online TPP Program

#Question id: 16899

#Section 3: Mathematics and Quantitative Ecology

Which of the following is not a possible explanation for this finding?
TLS Online TPP Program

#Question id: 16900

#Section 3: Mathematics and Quantitative Ecology

Which of the following is a valid conclusion from this finding?
TLS Online TPP Program

#Question id: 16901

#Section 3: Mathematics and Quantitative Ecology

The best way to determine whether a statistically significant difference in two means is of practical importance is to
TLS Online TPP Program

#Question id: 16902

#Section 3: Mathematics and Quantitative Ecology

A large company examines the annual salaries for all of the men and women performing a certain job and finds that the means and standard deviations are $32,120 and $3,240, respectively, for the men and $34,093 and $3521, respectively, for the women. The best way to determine if there is a difference in mean salaries for the population of men and women performing this job in this company is