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TLS Online TPP Program

#Question id: 12778

A population of white-footed mice becomes severely overpopulated in a habitat that has been disturbed by human activity. Sometimes intrinsic factors cause the population to increase in mortality and lower reproduction rates in reaction to the stress of overpopulation. Which of the following is an example of intrinsic population control?

#Unit 10. Ecological Principles
  1. Owl populations frequent the area more often because of increased hunting success.
  2. Females undergo hormonal changes that delay sexual maturation and many individuals suffer depressed immune systems and die due to the stress of overpopulation
  3. Clumped  dispersion  of  the  population  leads  to  increased  spread  of  disease  and  parasites  resulting  in  a population crash.
  4. All of the resources (food and shelter) are used up by overpopulation and much of the population dies of exposure and/or starvation.

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TLS Online TPP Program

#Question id: 11896

#General Aptitude

The LCM of two numbers is 20 times their HCF. The sum of HCF and LCM is 2520. If one of the number is 480, then the other number is
TLS Online TPP Program

#Question id: 4957

#Unit 11. Evolution and Behavior

How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?
TLS Online TPP Program

#Question id: 4039

#Unit 3. Fundamental Processes

Which of the following statements is true about a lac operon with this genotype?

I-d O+ Z+ Y- A- ___
TLS Online TPP Program

#Question id: 28312

#Unit 5. Developmental Biology

 Mammalian egg have pathways for accepting both (heterogeneous population) types of capacitated sperm acrosome-intact sperm as well as acrosome-reacted sperm, sperm with intact acrosomes become bound to ___
TLS Online TPP Program

#Question id: 32138

#Unit 1. Molecules and their Interaction Relevant to Biology

The bond angle of glycosidic bond is