Aparticipant in a study of music perception listens to music with electrodes attached to her scalp while data are collected on the activity of her brain. this technique is

Electroencephalography (EEG)

Explanation:

Electroencephalography is an electro-physiological technique developed in 1924 which detects the electrical activity in the brain by attaching metal discs on the scalp.

The metal discs measure the electrical signals in the form of bolts which gets recorded and sent to the amplifier which sequences the activity and tells the cortical region which got activated.

Thus, EEG is the correct answer.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)