The evolution of the heart from 2-chambers, to 3-chambers, to 4-
chambers allowed the animal t...
Biology, 05.05.2021 18:40 bloodgif3386
The evolution of the heart from 2-chambers, to 3-chambers, to 4-
chambers allowed the animal to
Answers: 2
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 19:00
Which of the following best describes the purpose of technology?
Answers: 3
Biology, 21.06.2019 20:00
Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle
Answers: 1
Biology, 22.06.2019 03:00
Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus
Answers: 1
History, 21.12.2019 01:31
Social Studies, 21.12.2019 01:31
Mathematics, 21.12.2019 01:31
English, 21.12.2019 01:31
Mathematics, 21.12.2019 01:31
Arts, 21.12.2019 01:31
Mathematics, 21.12.2019 01:31
Computers and Technology, 21.12.2019 01:31
Biology, 21.12.2019 01:31
History, 21.12.2019 01:31
Social Studies, 21.12.2019 01:31