In prokaryotes the single dna chromosome is a covalently closed dsdna circle.  replication starts at the:

2. what process do mrna and trna work together to complete? (3 points)

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt