A changing electric field produces a magnetic field and and a changing magnetic field produces an electric field. What happens to the electric field and the magnetic field?

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)