What is unique about the deep ocean vents related to the factors for life to exist?

Which of the following statements are true chromosomes make up genes

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin