Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 6564
TLS Online TPP Program

#Question id: 9253

A certain species of pine tree survives only in scattered locations at elevations above 2,800 meters in the western United States. To understand why
this tree grows only in these specific places, an ecologist should ________.

#Unit 9. Diversity of Life Forms
  1. study the anatomy and physiology of this species
  2. investigate the various biotic and abiotic factors that are unique to high altitude
  3. analyze the soils found in the vicinity of these trees, looking for unique chemicals that may support their growth
  4. collect data on temperature, wind, and precipitation at several of these locations for a year
More Questions
TLS Online TPP Program

#Question id: 17079

#Unit 12. Applied Biology

The major disadvantages of using serum in the culture medium could be
TLS Online TPP Program

#Question id: 31333

#Unit 5. Developmental Biology

According to the Quartet Model of flower development, the identity of each of the floral organs is determined by four combinations of the floral homeotic proteins. Match the following model of interaction with floral organs. 
TLS Online TPP Program

#Question id: 11681

#Unit 7. System Physiology – Animal

A baby is born with a penis, a scrotum with no testes, no vagina, and XX chromosomes. This condition is referred to as hermaphroditism. Which of the following could cause this abnormality?
TLS Online TPP Program

#Question id: 2141

#Unit 2. Cellular Organization

Facilitated diffusion through a biological membrane is:
TLS Online TPP Program

#Question id: 1442

#Unit 4. Cell Communication and Cell Signaling

Transgenic mice that express an activated oncogene like rasD under the control of the TetOFF system are likely to undergo which of the following events when tetracycline is given?