Practice Questions

TLS Online TPP Program

#Question id: 9239

Why are changes in the global carbon cycle important?

#SCPH28 | Zoology

Burning increases available carbon for primary producers and, therefore, primary consumers.
Deforestation and suburbanization increase an area's net primary productivity.
Increasing atmospheric concentrations of carbon dioxide are altering Earth's climate.
By using fossil fuels, we are replenishing a nonrenewable resource.

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TLS Online TPP Program

#Question id: 945

#SCPH06 I Botany

A key precursor in the synthesis of aromatic amino acids (tryptophan, tyrosine and phenylalanine) is ________.

TLS Online TPP Program

#Question id: 10986

#SCPH28 | Zoology

Which of the following conditions at the A-V node will cause a decrease in heart rate?

TLS Online TPP Program

#Question id: 4821

#SCPH28 | Zoology

What are frequency of recombination if one cell carry out cross over every 50 cell undergoes meiosis ?

TLS Online TPP Program

#Question id: 23149

#SCPH06 I Botany

In fluorescence microscopy a usually used fluorochrome that is fura-2 is sensitive to which ions?

TLS Online TPP Program

#Question id: 23176

#SCPH06 I Botany

When we use a high-intensity light to permanently bleach the fluorochrome in the patch, there will initially be no fluorescence and it will look