Which action is the best way to turn an electromagnet on and off? A. Add a switch to the electrical circuit

B. Slide the magnetic core in and out of the wire coil.

C. Increase or decrease the temperature.

D. Change the shape of the wire coil.

How does this experiment explain why it is often milder in areas such as coastal maryland while areas such as kansas or iowa have more extremes in temperature

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Coral have a symbiotic relationship with what in order to eat?