A.
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Since people with HIV have weakened immune systems it would be:
C) People with HIV are unable to fight off these rare diseases.
I think the it may be the liver
I think its C.
hope this helps
I think thats because small animals have small body that can hide in a safe place. Like example if small animals hide go down to the earth, and the meteorite hit the earth, they will safe down to the ground.
Not like larger animals, they can only hide up he surface and when the meteorites came, they died.
Also some small animals such as cockroaches have ability to adapt to changes.
