Describe how a pathogenic organism might complete the following steps upon encountering a suitable animal host:
i. entry into the organism
ii. dissemination through tissue
iii. acquisition of nutrients
iv. evasion of killing

i think it might be the iii or iv

Explanation:

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.