According to your cladogram, what species are dragonflies most closely related to? How do you know?

How does using straws hurt the sea turtles?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

2polnis which of the following is an advantage of an in vitro experiment?me