Please help me with this it’s so hard
...
Answers: 3
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
Answers: 2
Biology, 21.06.2019 23:00
How do chloroplasts set plants apart from other living things
Answers: 1
Biology, 22.06.2019 08:10
Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material
Answers: 1
Biology, 22.06.2019 09:00
Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
Answers: 1
Mathematics, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
English, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Chemistry, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20
Chemistry, 05.03.2021 17:20
Mathematics, 05.03.2021 17:20