Complementary strands of DNA are held together by hydrogen bonding.
Answer:
C. Electroencephalography (EEG)
Explanation:
This is an electrophysioloical method of recoding the electrical activities in the brain. The process is non invasive and involves placing wires across different regions of the scalp. It measures the voltage fluctuations resulting from ionic current within the neurons of the brain. This helps to study the state of the brain and rule out disorders
Your amswer would have to be a triangle
A fertilization and reproduction