Each circle represents an atom and each
different color represents a different kind of atom.
...
Each circle represents an atom and each
different color represents a different kind of atom.
If two atoms are touching then they are bonded
together
A. Element
B. Compound
C. Mixture of elements
D. Mixture of compounds
E. Mixture of elements and compounds
Please help me!!
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, 22.06.2019 02:30
{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.
Answers: 1
Biology, 22.06.2019 03:00
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)—two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
Answers: 1
Mathematics, 16.09.2020 19:01
Geography, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Social Studies, 16.09.2020 19:01
Geography, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Social Studies, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01
Mathematics, 16.09.2020 19:01