Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 45771
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
  1. Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
  2. Forelimb evolution was adaptive in people and bats, but not in whales.
  3. Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
  4. Genes mutate faster in whales than in humans or bats.
More Questions
TLS Online TPP Program

#Question id: 8955

#SCPH28 | Zoology

Which of the following characteristics generally applies to protostome development?
TLS Online TPP Program

#Question id: 8956

#SCPH28 | Zoology

Protostome characteristics generally include which of the following?
TLS Online TPP Program

#Question id: 8957

#SCPH28 | Zoology

A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and lie in the grooves between larger, underlying cells (spiral cleavage). This embryo may potentially develop into a(n)
TLS Online TPP Program

#Question id: 8958

#SCPH28 | Zoology

A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and lie in the grooves between larger, underlying cells (spiral cleavage). If we were to separate these eight cells and attempt to culture them individually, then what is most
likely to happen?
TLS Online TPP Program

#Question id: 9050

#SCPH06 I Botany

If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?
TLS Online TPP Program

#Question id: 9050

#SCPH28 | Zoology

If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?