TLS Online TPP Program

#Question id: 9168


Which of the following statements best describes the interaction between fire and ecosystems?

#SCPH28 | Zoology
  1. The likelihood of a wildfire occurring in a given ecosystem is highly predictable over the short term.

  2. Many kinds of plants and plant communities have adapted to frequent fires.
  3. The suppression of forest fires by humans has prevented certain communities, such as grasslands, from reaching their climax stage.

  4. Chaparral communities have evolved to the extent that they rarely burn
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TLS Online TPP Program

#Question id: 8709

#SCPH05 I Biotechnology

Eukaryotes that are not closely related and that do not share many anatomical similarities can still be placed together on the same phylogenetic tree by comparing their ________.

TLS Online TPP Program

#Question id: 8709

#SCPH28 | Zoology

Eukaryotes that are not closely related and that do not share many anatomical similarities can still be placed together on the same phylogenetic tree by comparing their ________.

TLS Online TPP Program

#Question id: 8710

#SCPH05 I Biotechnology

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.

TLS Online TPP Program

#Question id: 8710

#SCPH28 | Zoology

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.

TLS Online TPP Program

#Question id: 8712

#SCPH28 | Zoology

The lakes of northern Minnesota are home to many similar species of damselflies of the genus Enallagma. These species have apparently undergone speciation from ancestral stock since the last glacial retreat about 10 thousand years ago. Sequencing which of the following would probably be most useful in sorting out evolutionary relationships among these closely related species?

TLS Online TPP Program

#Question id: 8713

#SCPH28 | Zoology

Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of sequence homology? Dogs and wolves ________.