Practice Questions

TLS Online TPP Program

#Question id: 10244

Ecological niche modelling is used to predict the distributions of species. As a general rule, which of the following statements is true?

#10. Ecological Principles

Distributions of species do not reflect the range of physical conditions that support the survival and reproduction of individuals
The more suitable the conditions for a species, the denser its population, and the greater its productivity
Changes over time in conditions such as temperature, precipitation, and salinity have not been shown to affect the distribution of marine fish species
Global climate change always results in a decline in the number of species inhabiting a given area

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TLS Online TPP Program

#Question id: 10386

#6. System Physiology – Plant

During light-regulated plant development many seeds require light to germinate, a process called

TLS Online TPP Program

#Question id: 10387

#6. System Physiology – Plant

Action spectrum stimulated phototropism in oat coleoptiles. The “three finger” pattern in the 400–500 nm region is characteristic of-

TLS Online TPP Program

#Question id: 10388

#6. System Physiology – Plant

Phytochrome can interconvert between Pr and Pfr forms, Pr receives red light and converts into Pfr while Pfr receives far-red light and then converts into Pr, so which form of phytochrome is responsible for seed germinations?

TLS Online TPP Program

#Question id: 10389

#6. System Physiology – Plant

The amount of light absorb by the plant per square meter (µmol m–2) known as

TLS Online TPP Program

#Question id: 10391

#6. System Physiology – Plant

Several of the structural domains in phytochrome, the N-terminal half of phytochrome contains;

TLS Online TPP Program

#Question id: 10392

#6. System Physiology – Plant

Structural domains in phytochrome are dimeric chromoproteins. The two sub‐units of phytochromes are linked with