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.

the answer is b.) hydrogen bonds between bases.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle