Most scientists directly involved in animal behavior are found within two disciplines: Ethology and comparative psychology.<span>
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An electroencephalogram (EEG) reveals the electrical activity of the brain by producing a record of brain waves. It is noninvasive and uses electrodes which are placed along the scalp. It records the electrical signals of the brain. This can help diagnose sleep disorders and epilepsy
A PET Scan, which is short for positron-emission tomography, reveals activity in various pars of the brain based on patterns of blood flow, oxygen use, and glucose consumption. It is an imaging test that makes use of radioactive materials or substances called tracers. It helps to see how the brain functions and it can be used as a diagnostic test for disease or injury in the brain.
Answer: Option C
Explanation: The flow of energy takes place from plants towards the higher level of organisms.
Plants absorb energy from the sun and make food by the help of the process known as photosynthesis.
The energy from the plants is transferred to primary consumer that is mostly herbivores.
The energy from the primary consumers are transferred to secondary consumers. The secondary consumers feed on primary consumer.
Then the animals die and fungi and other bacteria feed on them for their energy.
The correct order of energy transfer is Plants → Squirrel → Snake → Mushrooms.
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