the role of organik material is idont know
Although now it causes more harm than good because it doesn't really have a purpose, it is believed it once was used for humans to digest bone.
HIV tests are used to detect the presence of the human immunodeficiency virus
(HIV) the virus that causes acquired immunodeficiency syndrome (AIDS) in serum, saliva , or urine such tests may antibodies, antigens, or RNA .
The fossil record shows a sequence from simple bacteria to more complicated organisms through time, it is very reliable because it is physical evidence and by studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.
Answer:
gas moves more freely because it has loosely arranged molecules
Explanation:
