Rho inserts a small electrode into a cat’s brain and connects the electrode to a lever that administers a small electric shock to the brain every time it is pressed. dr rho notices that after the cat presses the lever the first time, she purrs and rubs up against the lever as she presses it over and over again. what part of the brain is the electrode most likely stimulating?

The part of the brain the electrode is most likely to be stimulating is the reward pathway of the brain.

Explanation:

The reward pathway of the brain is the area of the brain that senses pleasure.  The pathway covers the region starting from the  Ventral Tegmental Area (VTA), through to the amygdala, the nucleus accumbens, the pre-frontal cortex and finally to the hippocampus.

The amygdala deals with emotions and some other things, the nucleus accumbens controls the motor functions of the body, the pre-frontal cortex helps with attention and planning while the hippocampus  is responsible for the formation of memories.

Dr. Rho's experimental cat purred and rubbed up against the lever that administers electric shock to the brain each time it is pressed signals that the animal is deriving pleasure sensation from the electric shock. When the reward pathway of the brain becomes stimulated, neurons in the VTA release dopamine, a neurotransmitter often referred to as the pleasure hormone.

The released dopamine then travels to the other parts of the reward pathway making the body to feel pleasure and the need for more of the pleasure. This made Dr. Rho's cat to keep pressing the lever over and over again.

this would be a math

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."