Bones are made up of Calcium Phosphate given by the chemical formula,
. When bones are kept in Hydrochloric acid, given by the chemical formula, HCl, they become soft because the calcium compound present in the bones changes its form. The following double displacement reaction takes place when the bones are kept in HCl,
---> 
Calcium chloride is water soluble, and gets washed away. This makes the bone thin and soft.
Arterias, venas y capilares.
Tiny vibration particles of matter, such as atoms, held together by intermolecular bonds.
Liquid is able to flow and take the shape of a container. Most liquid resist compression, although others can be compressed.
Bacteria is the number 1 answers
Answer:
They once thought that humans came from monkeys and apes but now they think they come from a ancient ancestor not from the monkey or ape family.
Explanation: