the predominant pollutants include nitrogen oxides, particularly nitric oxide (NO) and nitrogen dioxide (NO2), and volatile organic compounds.
Sun the answer is the sun
Answer:
Explanation:
A boundary that distinguishes inside from outside the cell yet allows materials to enter or leave the cell.
The cell needs a barrier for protection, rigidity and also for easy transportation.
Answer:
A goes with the first box.
b goes with the second box.
c goes with the last box.
Explanation:
Answer:
higher-order conditioning
Explanation:
Pavlov found that a conditioned stimulus with a neutral (unconditioned stimulus ) associated, the dogs will experience the same previous salivation. First food was provided at the same time a bell ring, then the removal of the food, which was a natural trigger to making the dogs salivate was not present, still when ringing the bell, the dogs would act as if they were in front of the food.
This also called Higher Order Conditioning was the cornerstone of Pavlov findings.
The image shows the experiment: