Answer:
Plastics are non-corrosive in nature because they do not react with air, water or other substances. They do not get corroded even if they come in contact with strong chemicals. This is because of their non-reactive nature with most materials. For example, the cleansing chemicals that we use at home are stored in plastic bottles, instead of metal containers. I know its late but I still hope it helped. :)
If you look into a diagram of a virus you will be able to see that the outside of a virus is surrounded by a capsid, that is made with proteins.
Answer:
B) Under a microscope he observed box-like compartments of cork tree bark.
He observed a cork under a microscope.
Explanation:
He observed a cork under a microscope.
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It is the Foramen Ovale. The foramen ovale is a little gap situated in the septum between the two upper councils of the heart. The foramen ovale is utilized amid fetal dissemination to accelerate the go of blood through the heart.
The one fatal cardiac shunts, the other being the ductus arteriosus. Another comparative adjustment in the embryo is the ductus venous. In many people, the foramen ovale closes during childbirth.