The Discovery of Penicillin In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in
culture dishes. He noticed that a type of mold called Penicillium was also growing in
some of the dishes. A clear area existed around the mold because all the bacteria that
had grown in this area died.
Experiment #2:
Fleming thought that the mold must be producing a chemical that killed the bacteria. He
decided to isolate this substance and test it to see if it would kill bacteria. Fleming
transferred the mold to a liquid broth solution. This solution contained all the materials
the mold needed to grow. After the mold grew, he removed it. He then grew two identical
groups of bacteria. He then took the mold-infused broth and added it to the groups of
bacteria. Those bacteria died. Fleming then added a liquid broth that did not contain
mold to the second group of bacteria. This group survived.
1. What is the hypothesis?penicillium mold produce then it produces sorte
chemical that kills the bacteria
2. What independent variable were the scientists studying in this case?
What dependent variable were the scientists measuring?

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )