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TLS Online TPP Program

#Question id: 11284

Which of the following could qualify as a top-down control on a grassland community?

#XL - R Botany

  1. limitation of plant biomass by rainfall amount

  2. influence of temperature on competition among plants
  3. influence of soil nutrients on the abundance of grasses versus wildflowers
  4. effect of grazing intensity by bison on plant species diversity
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TLS Online TPP Program

#Question id: 1676

#XL - Q Biochemistry

NK cells lack receptors with:
TLS Online TPP Program

#Question id: 12583

#XL - R Botany

Which of the following is caused by excessive nutrient runoff into lakes?  
TLS Online TPP Program

#Question id: 27243

#XL - T Zoology

In DNA double helix, the two DNA chains are held together by
TLS Online TPP Program

#Question id: 32932

#XL - S Microbiology

Which of the following statements are NOT TRUE for archaea?
TLS Online TPP Program

#Question id: 4743

#XL - R Botany

Ectrodactyly is an autosomal dominant trait that causes missing middle fingers (lobster claw malformation). A grandfather and grandson both have ectrodactyly, but the intervening father has normal hands by x-ray. Which of the following terms applies to this family?