Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 9391
TLS Online TPP Program

#Question id: 12609

Which of the following is an example of an ecosystem?

#Unit 10. Ecological Principles
  1. All of the brook trout in a 500 hectare2 river drainage system.
  2. The plants, animals, and decomposers that inhabit an alpine meadow. 
  3. A pond and all of the plant and animal species that live in it.
  4. Interactions between all of the organisms and their physical environment in a tropical rain forest.
More Questions
TLS Online TPP Program

#Question id: 2781

#Unit 2. Cellular Organization

How many genes are estimated to be in the human genome?
TLS Online TPP Program

#Question id: 12700

#Unit 7. System Physiology – Animal

A young man is found comatose, having taking an unknown number of sleeping pills an unknown time before. An arterial blood sample yields the following values: pH = 7.02, HCO3− = 14 mEq/L, and PCO2 = 68 mm Hg. This patient’s acid–base status is most accurately described as
TLS Online TPP Program

#Question id: 3497

#Unit 11. Evolution and Behavior

Which of the following is correct statement?

a. Sexual selection should operate more powerfully in polygamous than in monogamous species

b. Polygynous species should have stronger sexual dimorphism than in monogamous species

c. Male competition or male choice favors adaptations to polygynous mating in species
TLS Online TPP Program

#Question id: 601

#Unit 1. Molecules and their Interaction Relevant to Biology

In a ping-pong reaction which does not occur?
TLS Online TPP Program

#Question id: 1850

#Unit 4. Cell Communication and Cell Signaling

What is a potential disadvantage of immunological protection using passive transfer of horse globulins?