Practice Questions

TLS Online TPP Program

#Question id: 13020

Experts in deer ecology generally agree that population sizes of deer that live in temperate climates are limited by winter snow. The deer congregate in ?yarding? areas under evergreen trees because venturing out to feed in winter is energetically too expensive when snowfall depths accumulate to above 40 cm. Deer often stay yarded until the spring thaw. Snow depth over 40 inches for more than 60 days results in high mortality due to starvation. This observation best illustrates which of the following principles about factors that limit distribution of organisms?

#Unit 10. Ecological Principles

Abiotic factors, such as weather extremes, ultimately limit distribution.
Organisms will face extinction unless they adapt to conditions or evolve new mechanisms for survival.
Environmental factors are limiting not only in amount but also in longevity.
Daily accumulations in snow depth gradually add up to cause increased deer mortality

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TLS Online TPP Program

#Question id: 1969

#Unit 4. Cell Communication and Cell Signaling

A bacterium has elements on its surface that are resistant to lysozyme. If an individual is infected with this bacterium, what is a probable consequence?

TLS Online TPP Program

#Question id: 19720

#Unit 3. Fundamental Processes

Tetraplex structure is the characteristics of telomere, choose the incorrect statement regarding this quartets

TLS Online TPP Program

#Question id: 18994

#Unit 13. Methods in Biology

Which of the following pulse damper takes up some amount of the pulsation energy which is released to provide smooth pressure without pulsations?

TLS Online TPP Program

#Question id: 11808

#Unit 6. System Physiology – Plant

In addition to the free bases, which are the only active forms, active cytokinin levels are decreased through;