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: 27489

#Unit 1. Molecules and their Interaction Relevant to Biology

At equilibrium in aqueous solution which form of sugar will be dominating

TLS Online TPP Program

#Question id: 27488

#Unit 1. Molecules and their Interaction Relevant to Biology

Cyclic monosaccharides or glycosides that are epimers, differing from each other in the configuration of C-1 if they are aldoses or in the configuration at C-2 if they are ketoses are known as

TLS Online TPP Program

#Question id: 27487

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is incorrect regarding the given figure

TLS Online TPP Program

#Question id: 27486

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the is true regarding D-Mannose, D-Glucose, and D-Galactose

1. D-Mannose are epimer with D-Glucose, at C2

2. D-Glucose, are epimer with D-Galactose at C4

3. D-Mannose are epimer with D-Galactose at C4

4. D-Galactose are epimer with D-Mannose at C2