A specific neuron becomes active whenever the animal is in a particular corner of its cage. This neuron is a and is located in the .
A. mirror neuron; premotor cortex
B. place cell; hippocampus
C. mirror neuron; hippocampus
D. place cell; premotor cortex

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.