What process is shown in the diagram below? A. Karyotyping
B. Use of restriction enzymes
C. Polymerase chain reaction(PCR)
D. Gel electrophoresis

*will mark brainliest to first correct answer* photosynthesis led to increasing levels during the later proterozoic eon? a. oxygen b. water c. carbon dioxide d. none of the above

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm