The definition to parasitism is "the practice of living as a parasite in or on another organism." (Wikipedia). Therfore the answer to this is Ticks live on and drink blood from a cow, because this is the only option where an organism is living directly off another organism.
Hope I was most helpfull to you!
Answer:
Venus
Explanation:
The order is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
Planet A is in the second ring which correlates with Venus
Transcription takes place in the nucleus of the cell.
