Parasites that use only a single host species in their life are called monoxenic; those with multiple hosts are called heteroxenic. ... intermediate hosts are all the others. Paratenic hosts are hosts that are used only for transport; no life cycle stages are completed within the host.
Answer:
3
Explanation:
(1/3x-1/6y)×18=4×18 ⇒ 6x-3y=72
6x-ay=8 if a=3 ⇒ 6x-3y=8
72≠8
a=3 ⇒ system has no solution
The circuit that are in parallel circuits are option A and option B.
<h3>What are parallel circuits?</h3>
A parallel circuit has branches that divide the current so that just a portion of it passes through each branch.
A parallel circuit has the same voltage (or potential difference) across each branch, but the currents might vary.
Thus, the correct options are A and option B.
Learn more about parallel circuits
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