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Biology, 21.06.2019 18:00
The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
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Biology, 22.06.2019 00:00
As a small change in a person's dna can cause a genetic disorder
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Biology, 22.06.2019 05:00
Explain how organisms could be harmed by high levels of salt from roadways?
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Biology, 22.06.2019 18:00
Is a fossil fem that support wegener's hypothesis of continental drift a. gondwanded b. kannemerid c. mesosaurus d. glossopters
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This type of cell is a eukaryote, and does NOT have a cell wall or chloroplasts.
A. Archaea
B...
B...
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