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TLS Online TPP Program

#Question id: 4596

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely to result in the algae-eater population in future generations?

#Unit 11. Evolution and Behavior

  1. selection for drab coloration of the algae-eaters

  2. selection for nocturnal algae-eaters (active only at night)

  3. selection for larger female algae-eaters, bearing broods composed of more, and larger, young

  4. selection for algae-eaters that become sexually mature at smaller overall body sizes

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TLS Online TPP Program

#Question id: 12949

#Unit 7. System Physiology – Animal

At which renal tubular sites would the concentration of creatinine be expected to be highest in a normally hydrated person?
TLS Online TPP Program

#Question id: 1133

#Unit 4. Cell Communication and Cell Signaling

What tertiary structure characterizes all cytokines?
TLS Online TPP Program

#Question id: 3284

#Unit 11. Evolution and Behavior

The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?
TLS Online TPP Program

#Question id: 90

#Unit 1. Molecules and their Interaction Relevant to Biology

Pyranose rings are usually most stable when the ring adopts a ________ conformation with the bulkiest ring substituents in ________ positions.
TLS Online TPP Program

#Question id: 33461

#Unit 1. Molecules and their Interaction Relevant to Biology

Which positions in the purine ring of a purine nucleotide in DNA have the potential to form hydrogen bonds but are not involved in Watson-Crick base pairing?