<span>B. es
</span>
We use "es" to refer where someone is from.
Both consists of oxygen molecules,oxygen gas is O2 whereas ozone is O3
Is methane and propane what you're looking for
The correct answer is it lives inside or on a host.
A is incorrect because a parasite steals from the host, without giving anything in return. Much like a leech
C is incorrect because leeches almost always use their host as a food source
D is incorrect because parasites can often dig beneath the host's skin to be hidden from sight
