TLS Online TPP Program

#Question id: 1119


Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because they:

#SCPH01 Biochemistry
  1. are species specific

  2. always lead to the same cellular response

  3. amplify the original signal many times

  4. counter the harmful effects of phosphatases

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TLS Online TPP Program

#Question id: 9241

#SCPH28 | Zoology

The main goal of sustainable development is to ________.

TLS Online TPP Program

#Question id: 9242

#SCPH06 I Botany

Eutrophication is often caused by excess limiting-nutrient runoff from agricultural fields into aquatic ecosystems. This process results in massive algal blooms that eventually die and decompose, ultimately depleting the dissolved oxygen, killing large numbers of fish and other aquatic organisms. Predict which of the following human actions would best address the problem of eutrophication near agricultural areas?

TLS Online TPP Program

#Question id: 9242

#SCPH28 | Zoology

Eutrophication is often caused by excess limiting-nutrient runoff from agricultural fields into aquatic ecosystems. This process results in massive algal blooms that eventually die and decompose, ultimately depleting the dissolved oxygen, killing large numbers of fish and other aquatic organisms. Predict which of the following human actions would best address the problem of eutrophication near agricultural areas?

TLS Online TPP Program

#Question id: 9243

#SCPH28 | Zoology

Elevated carbon dioxide levels have been shown to contribute to the greenhouse effect, resulting in an increase in mean global temperature. Ecosystems where the largest warming has already occurred include snow-covered northern coniferous forests, tundra, and arctic sea ice habitats. Which statement best explains how the elimination of ice-covered ecosystems affects the rise or fall in global temperature?

TLS Online TPP Program

#Question id: 9244

#SCPH28 | Zoology

One characteristic that distinguishes a population in an extinction vortex from most other populations is that

TLS Online TPP Program

#Question id: 9251

#SCPH28 | Zoology

Which of the following is responsible for the differences in summer and winter temperature stratification of deep temperate zone lakes?