Which of the following is the cytokine that is most involved in the class switch to IgE production?

TLS Online TPP Program

#Question id: 29049

#Unit 10. Ecological Principles

Some given statements about anti freezing are given;

a. some invertebrates to withstand temperatures as low as –18°C without freezing, in presence of glycoproteins

b. Sodium, potassium, or chloride ions involve to increasing  the blood freezing point, so the lack of these ions some species help to lower the blood freezing point

c. Amphibians release large amount of glucose into the blood to prevent freezing of blood in cold

d. Sodium, potassium or urea function as anti freezing in their blood

e. Glycine causes supercooling in plants

Which of the following statements about supercooling/anti freezing is correct?

TLS Online TPP Program

#Question id: 3020

#Unit 2. Cellular Organization

During which phase of the bacterial growth curve does the total number of viable cells decline?

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#Question id: 10925

#Unit 7. System Physiology – Animal

During the second trimester of pregnancy, where is the predominant site of red blood cell production?

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#Question id: 604

#Unit 1. Molecules and their Interaction Relevant to Biology

An enzyme is irreversibly inhibited by diisopropylfluorophosphate (DFP). What does this show?

TLS Online TPP Program

#Question id: 12971

#Unit 10. Ecological Principles

One group of ecologists has suggested that producers are limited by competition for resources, primary consumers (herbivores) are limited by predation, and secondary consumers (carnivores) are limited by food. If this were true, at which of the following trophic levels would one expect to find substantial evidence for competitive exclusion?