Which of the following statements is true?

ethologists believe that animal behavior is based on the environment.

comparative behaviorists believe that animal behavior is based on instinct.

today, most scientists believe that both nature and nurture are important in animal behavior.

pavlov's dog experiment proved the nurturing concept over the nature concept in animal behavior.

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis