Practice Questions

TLS Online TPP Program

#Question id: 11406

Which of the following is true for a critically endangered species?

#XL - R Botany

Reduction in population size is greater than 90%; estimated extinction risk at least 80% in 10 years; area of occupancy less than 10 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 100 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; extent of occurrence less than 10 km^2 generations
Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 10 km^2 g

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TLS Online TPP Program

#Question id: 310

#XL - Q Biochemistry

Ionic bonds easily form when electron when ionization energy of the metallic atom is _____ comparatively.

TLS Online TPP Program

#Question id: 19942

#XL - P Chemistry

The total number of electrons present in any main energy level can be calculated from

TLS Online TPP Program

#Question id: 16493

#XL - T Zoology

35S promoter sequences derived from cauliflower mosaic virus shows which type of expression.

TLS Online TPP Program

#Question id: 19974

#XL - P Chemistry

The transition in He⁺ion that would have the same wave number as the first Lyman line in hydrogen spectrum is

TLS Online TPP Program

#Question id: 8920

#XL - T Zoology

Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the