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TLS Online TPP Program

#Question id: 10676

For a pair of interacting species, increased specialization and decreased niche breadth in both species would result in

#Unit 10. Ecological Principles
  1. decreased intraspecific competition and increased interspecific competition
  2. decreased intraspecific competition and decreased interspecific competition
  3. increased intraspecific competition and increased interspecific competition
  4. increased intraspecific competition and decreased interspecific competition
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TLS Online TPP Program

#Question id: 5720

#Unit 8. Inheritance Biology

Which two of the following are the CORRECT statements ?

P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms

Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms

R. Nondisjunction in the parental meiosis is essential to produce hexaploid organism

S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms
TLS Online TPP Program

#Question id: 16144

#Unit 4. Cell Communication and Cell Signaling

  _______are motile phagocytic cells they play their most important role in the defense against multicellular parasitic organisms, including worms. They can be found clustering around invading worms, whose membranes are damaged by the activity of proteins released from its granules. it may also secrete cytokines that regulate B and T lymphocytes, thereby influencing the adaptive immune response.
TLS Online TPP Program

#Question id: 19094

#Unit 4. Cell Communication and Cell Signaling

Hm1‐resistant maize plants produce an
TLS Online TPP Program

#Question id: 13129

#Unit 10. Ecological Principles

Biologists performed an experiment with flies to examine the effects of population size on the maintenance of genetic variation  and  on  egg-to-adult survival.  From  a  large  source  population, they  randomly  assigned  eggs  to  three experimental  populations  of  size  N,  equal  to  20,  60,  and0100.  For  later  generations,  they  collected  N  eggs  from each  population  and  moved  them  into  identical  vials  that  co0ntained  f2re0sh  me4d0ium.  Th6e0y  coun8te0d  the  number  of adult flies that emerged and used tissue samples from the adults for genetic analyses. Genetic variation was measured by  scoring  alleles  at  several  polymorphic  loci  and  expressed  as  the  average  number  of  alleles  at  those  loci.  The results are summarized in Figure 1 and Figure 2 below.

Based on Figure 1, which of the following best describes the change in genetic variation over time? 
TLS Online TPP Program

#Question id: 17080

#Unit 12. Applied Biology

Hypoxanthine and thymidine are required for running which pathway