Practice Questions

TLS Online TPP Program

#Question id: 8852

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?

#SCPH06 I Botany

Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
Forelimb evolution was adaptive in people and bats, but not in whales.
Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
Genes mutate faster in whales than in humans or bats.

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TLS Online TPP Program

#Question id: 11446

#I Life Science/ Life Sciences Group – I-V

A physiologist is studying the homeostatic control of blood pH. What type of receptor might be responsible for detecting changes in blood pH?

TLS Online TPP Program

#Question id: 11446

#SCPH28 | Zoology

A physiologist is studying the homeostatic control of blood pH. What type of receptor might be responsible for detecting changes in blood pH?

TLS Online TPP Program

#Question id: 11447

#I Life Science/ Life Sciences Group – I-V

The correct sequence of sensory processing is ________.

TLS Online TPP Program

#Question id: 11447

#SCPH28 | Zoology

The correct sequence of sensory processing is ________.

TLS Online TPP Program

#Question id: 11448

#I Life Science/ Life Sciences Group – I-V

Artificial electrical stimulation of a human's capsaicin-sensitive neurons would likely produce the sensation of ________.

TLS Online TPP Program

#Question id: 11448

#SCPH28 | Zoology

Artificial electrical stimulation of a human's capsaicin-sensitive neurons would likely produce the sensation of ________.