Answer:
C. Embryos
Explanation:
Therapeutic cloning is used for research as it clones embryos for scientific studies.
During therapeutic cloning, there is a need for embryo to be clones as a fertilized egg is put inside the nucleus of a cell.
A serpent and an elephant. It was a town of machinery and tall chimneys, out of which interminable [unending] serpents of smoke trailed themselves for ever and ever, and never got uncoiled. It had a black canal in it, and a river that ran purple with ill-smelling dye, and vast piles of building full of windows where there was a rattling and a trembling all day long, and where the piston of the steam-engine worked monotonously up and down, like the head of an elephant in a state of melancholy madness.
With the A. migration of people from fertile areas, knowledge of agriculture spread by diffusion.
When people migrate from a place, they move into other areas. When something diffuses, it spreads around.
Finally a women from the shelter came to our house to see if it was a safe environment for kittens
