Can someone help me with these questions? I will mark you brainliest.

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?