Answer to this is copper wire
Ribosomes are Protein builders or synthesizers of the cell.
Giraffes and Elephants: Giraffes have adapted a long neck over time letting them eat and access food allowing them to survive. If a dry season was unusually long they would succeed fine because they are able to eat and drink from the trees. Elephants have survived with similar tactics of eating higher up, they have rough skin allowing them to outlast the heat, and only need water after long periods of time.
The correct answer is D. Tortoises and snails have analogous organs, and they don't belong to the same species.