Is the manipulation of the dna of cells to change hereditary traits or produce biological products. a. selective breeding b. genetic engineering c. mutation d. radiation

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Which type of respiration takes place when there is no oxygen present

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity