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TLS Online TPP Program

#Question id: 3464

Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testosterone causing growth of the larynx. If the fossil records ofapes and humans alike show a trend toward decreasing larynx size in adult females and increasing larynx size in adult males, then

#SCPH06 I Botany

sexual dimorphism was evolving over time in these species
intrasexual selection seems to have occurred in both species
stabilizing selection was occurring in these species concerning larynx size
selection was acting more directly upon genotype than upon phenotype

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TLS Online TPP Program

#Question id: 10238

#SCPH06 I Botany

The diagram below shows the frequency distribution of two closely related bird species based on their resource use in sympatric. Which one of the following phenomena most appropriately explains the change in frequency distributions of species 1 and 2 in the figure given above?

TLS Online TPP Program

#Question id: 10238

#SCPH28 | Zoology

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#Question id: 10239

#SCPH06 I Botany

Two species of barnacle, balanus balanoides and Chthamalus stellatus, occur in the intertidal regions of Scotland. As following

Which of the following statements is correct?

TLS Online TPP Program

#Question id: 10239

#SCPH28 | Zoology

Two species of barnacle, balanus balanoides and Chthamalus stellatus, occur in the intertidal regions of Scotland. As following