TLS Online TPP Program

#Question id: 5018


Which event is nearest in time to the end of the period known as snowball Earth?

#11. Evolution and Behavior
  1.  oxygenation of Earthʹs seas and atmosphere

  2.  evolution of mitochondria

  3. Cambrian explosion

  4. evolution of true multicellularity

More Questions
TLS Online TPP Program

#Question id: 12577

#10. Ecological Principles

During  a  field  trip,  an  instructor  touched  a  moth  resting  on  a  tree  trunk.  The  moth  raised  its  forewings  to  reveal large eyespots on its hind wings. The instructor asked why the moth lifted its wings. One student answered that sensory  receptors  had  fired  and  triggered  a  neuronal  reflex  culminating  in  the  contraction  of  certain  muscles.  A second student responded that the behaviour might frighten predators. Which statement best describes these explanations?

TLS Online TPP Program

#Question id: 9199

#9. Diversity of Life Forms

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

TLS Online TPP Program

#Question id: 3273

#11. Evolution and Behavior

The number of forward mutations is equal to the number of reverse mutations then

a) Population is in equilibrium for forward and reverse mutation rates

b) The population is being in Hardy–Weinberg equilibrium

c) No further change in allelic frequency

TLS Online TPP Program

#Question id: 18006

#11. Evolution and Behavior

During which geological period origin, first forests; lands plants well established?

TLS Online TPP Program

#Question id: 12070

#7. System Physiology – Animal

A 26-year-old man develops glomerulonephritis, and his GFR decreases by 50% and remains at that level. For which of the following substances would you expect to find the greatest increase in plasma concentration?