Which person’s function in a school is similar to the central nervous system’s role in a human body?

a cafeteria worker
a student
a principal
a bus driver

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes