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TLS Online TPP Program

#Question id: 10582

Which of the following is incorrect?

#Section 2: Evolution
  1. Communities with intermediate levels of disturbances often have more species than communities with very low or very high levels of disturbances
  2. K selected species are more prone to extinct than r selected species
  3. iemelparity species may be continuous breeder
  4. Production efficiency of K selected species is higher than r selected species
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TLS Online TPP Program

#Question id: 8928

#Section 2: Evolution

An adult animal that possesses bilateral symmetry is most certainly also
TLS Online TPP Program

#Question id: 8929

#Section 2: Evolution

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be
1. a clade.
2. a grade.
3. monophyletic.
4. paraphyletic.
5. polyphyletic.
TLS Online TPP Program

#Question id: 8930

#Section 2: Evolution

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the
TLS Online TPP Program

#Question id: 8931

#Section 2: Evolution

A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the following genes is absolutely conserved, which of the following would be the best choice on which to base the phylogeny?
TLS Online TPP Program

#Question id: 8935

#Section 2: Evolution

What may have occurred to prevent species that are of the same grade from also belonging to the same clade?
TLS Online TPP Program

#Question id: 11401

#Section 2: Evolution

In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leafʹs nonliving, waxy covering, while inhibiting the growth of

other microbes that are plant pathogens. If this bacterium gains access to the inside of a leaf, it causes a fatal disease in the plant. Once the plant dies, the bacterium

and its offspring decompose the plant. What is the correct sequence of ecological roles played by the bacterium in the situation described here? Use only those that

apply.

1.  nutrient recycler          2.  mutualist            3.  commensal              4.  parasite          5.  primary producer