Biology, 07.10.2019 04:10 ashleypere99
Es 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 lavosier proved that combustion requires a gas that has mass.
phlogiston is evidence that
scientific knowledge is exact
scientific knowledge can evolve.
scientific knowledge is 100% proven.
scientific knowledge does not evolve.
Answers: 1
Biology, 21.06.2019 15:30
Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)
Answers: 1
Biology, 22.06.2019 03:00
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
Answers: 2
Biology, 22.06.2019 14:30
Alexa is preparing for a presentation by creating note cards identifying keywords that describe various features of each type of plate boundary. which words apply to all three of the convergent boundaries?
Answers: 2
Biology, 22.06.2019 18:30
In which order does sexual reproduction take place in plants? a. pollination, germination, fertilization b. germination, fertilization, pollination c. pollination, fertilization, germination d. fertilization , pollination, germination
Answers: 1
Es the phlogiston theory in the 17th century attempted to explain burning. the theory stated that co...
Social Studies, 14.11.2021 22:50
Health, 14.11.2021 22:50
Mathematics, 14.11.2021 22:50
Chemistry, 14.11.2021 22:50
Physics, 14.11.2021 22:50
Mathematics, 14.11.2021 22:50
French, 14.11.2021 22:50
Physics, 14.11.2021 22:50
Mathematics, 14.11.2021 22:50