Most people suffering from sleepwalking disorder do not have a family history of this disorder. a. true b. false

The answer here is true

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely