Problem:OPTIONS:
- Evaporation
- energy usage
- warming
- sweating
- fur and fat
- eating
- tail fins
- drinking

You are presented with the quiz "What reduces heat necessary for maximum predatory activity?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sweating reduces body heat" and "high body heat is necessary for maximum predatory activity". So, what's the best answer to the question?
****
A: sweating

Problem:OPTIONS:
- Transfers energy
- food poisoning
- production of energy
- they form a bomb
- it helps plants in growing
- they die
- copepods feed on them
- competing for resources

You are presented with the quiz "what happens to bacteria and algae that use sunlight to make food?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "phytoplankton are bacteria and algae that use sunlight to make food" and "most copepods feed on phytoplankton". So, what's the best answer to the question?
****
A: copepods feed on them

Problem:OPTIONS:
- burning coal
- animal transport
- Dehydration
- radiative transfer
- osmosis
- convection
- fossil fuels
- a sphincter

You are presented with the quiz "Metabolic waste products can leave the body through" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "urine leaves the body through a sphincter in the process of urination" and "fluids in the urine eliminate metabolic waste products". So, what's the best answer to the question?
****
A: a sphincter

Problem:OPTIONS:
- extinction
- Mars
- competition
- Darwin
- agriculture
- behavior
- environment
- Galapagos Islands

You are presented with the quiz "The evolution of animal genetic resources can be impacted by:" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "behaviors that improve fitness increase through natural selection" and "adaptation traits contribute to individual fitness and to the evolution of animal genetic resources". So, what's the best answer to the question?
****
A:
behavior