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TLS Online TPP Program

#Question id: 10839

Which of the following statements about plants and herbivores is true?

#Unit 10. Ecological Principles
  1. Primary compounds tend to be more toxic than secondary compounds
  2. Secondary compounds are toxic to all herbivores
  3. Algae as well as plants produce toxic chemical compounds
  4. Herbivores that can tolerate a particular secondary compound usually feed on a wide variety of plant species
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TLS Online TPP Program

#Question id: 27004

#Unit 10. Ecological Principles

In Lotka and Voltera’s two species competition model: Where N represents population size, r growth rate and K maximum carrying capacity for species 1 and 2. The interspecific competition coefficient α12 <1will mean:
TLS Online TPP Program

#Question id: 4275

#Unit 3. Fundamental Processes

CCA-adding enzymes add a specific sequence without a template because
TLS Online TPP Program

#Question id: 28052

#Unit 1. Molecules and their Interaction Relevant to Biology

Attractive van der Waals forces occur 
TLS Online TPP Program

#Question id: 171

#Unit 1. Molecules and their Interaction Relevant to Biology

An amino acid with two chiral carbon atoms
TLS Online TPP Program

#Question id: 2892

#Unit 2. Cellular Organization

The edges of each base pair are exposed in the major and minor grooves, creating a pattern of hydrogen-bond donors and acceptors and of hydrophobic groups (allowing for Vander Waals interactions) that identifies the base pair. The edge of an T : A base pair displays the following chemical groups in the following order in the major groove: