Answer:
1
Explanation:
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Description
Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10−27 kg/m3. .
The germinal layers that give rise to the digestive system is Ectoderm, Endoderm, Mesoderm, Respectively.
Answer: I think it id b But im not positive
Answer: Pia mater. The pia mater (Latin: tender mother) is a very delicate membrane. It is the meningeal envelope that firmly adheres to the surface of the brain and spinal cord, following all of the brain's contours
Explanation:
It can be harmful for humans because you do not want to hold the drug resistant bacteria within you because it can get you sick! If you take a certain medication over and over again, it will kill most of the bacteria that makes you ill, however it also leaves some bacteria that become RESISTANT towards the certain medication, resulting in the bacteria that is resistant reproducing and getting you sick once again.
