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TLS Online TPP Program

#Question id: 9609

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

#XL - S Microbiology
  1. Flesh color, rather than skin color, is a valid trait to use for classification because it is less susceptible to change with the age of the tuber.
  2. Flower color is a better classification criterion, because below-ground tubers can be influenced by minerals in the soil as much as by their genes.
  3. The only biologically valid classification of potato varieties is one that accurately reflects their genetic and evolutionary relatedness.
  4. The most accurate phylogenetic code is that of Linnaeus. Classify potatoes based on Linnaean principles; not according to their color.
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TLS Online TPP Program

#Question id: 20149

#XL - P Chemistry

The maximum number of electrons in a subshell for which l=3 is
TLS Online TPP Program

#Question id: 2651

#XL - T Zoology

In the presence of lactose, how long does it take for the lac operon to be expressed?
TLS Online TPP Program

#Question id: 19633

#XL - P Chemistry

A base according to Bronsted concept is a substance which can:
TLS Online TPP Program

#Question id: 3486

#XL - T Zoology

Which of the following might affect the foraging behavior of an animal in the context of optimal foraging?

A) risk of predation

B) prey size

C) prey defenses
TLS Online TPP Program

#Question id: 11478

#XL - T Zoology

In a mammalian visual system, visual information is integrated at ________.

 I) the lens

 II) the retina

 III) the optic nerve

 IV) the visual cortex