Practice Questions

TLS Online TPP Program

#Question id: 4992

The existence of the phenomenon of exaptation is most closely associated with which of the following reasons that natural selection cannot fashion perfect organisms?

#XL - S Microbiology

Natural selection and sexual selection can work at cross-purposes to each other.
Evolution is limited by historical constraints.
Adaptations are often compromises.
Chance events affect the evolutionary history of populations in environments that can change unpredictably.

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TLS Online TPP Program

#Question id: 4932

#XL - T Zoology

Which of the following is the best hypothesis regarding origins of nucleic acids?

TLS Online TPP Program

#Question id: 20162

#XL - P Chemistry

For which of the following sets of quantum -numbers an electron will have the highest energy ?

TLS Online TPP Program

#Question id: 8692

#XL - S Microbiology

Which of the following statements is accurate with regard to a phylogeny, as represented by a phylogenetic tree?

TLS Online TPP Program

#Question id: 27457

#XL - R Botany

Which of the following are the major pigments of Rhodophyceae?

TLS Online TPP Program

#Question id: 2064

#XL - S Microbiology

What kinds of molecules pass through a cell membrane most easily?