1. which microscope is used for determining the chemical identity of a substance?

2. a piece of physical evidence is fused with sodium metal to form a solution. a deep yellow precipitate is obtained when nitric acid and silver nitrate is added to the solution. which element does the physical evidence contain?
a.
carbon
b.
nitrogen
c.
iodine
d.
oxygen

class- forensic science

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.

What is used to keep track of the gamates and possible offsprings combination

Study this image which statement best describes the rock shown check all that apply