Biology, 09.10.2019 00:00 jojomgarcia01
What are the two types of minerals? a. industrial and environmental b. valuable and invaluable c. metallic and nonmetallic d. important and unimportant
Answers: 1
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, 21.06.2019 18:30
How is the male reproductive system different from other body systems? it isnât necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.
Answers: 1
Biology, 21.06.2019 22:00
There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?
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Biology, 22.06.2019 10:30
All ova contain sex chromosomes corresponding to: x y xx xy
Answers: 2
What are the two types of minerals? a. industrial and environmental b. valuable and invaluable c. m...
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