No. All animals have one mouth and one anus.
No, only Martha Stewart anus.
In humans, no, not unless the person was born with a birth defect.
The mouth, teeth, esophagus, pancreas, stomach, liver, gallbladder, rectum, and anus. There might be one more, but I don't know! The mouth, teeth, esophagus, pancreas, stomach, liver, gallbladder, rectum, and anus. There might be one more, but I don't know!
no
Perineum - One. It is the space between the anus and the scrotum or vagina.
I do think that a person can have more than one virus at a time because if you are in a very contaminated area then you can catch more than one virus
a human is obviouly multicellular, because we have more than one cell.
A human would be one example, with a mouth at one end and an anus at the other.
Less than one quarter, about 20 %.
Yes it is for a couple of reasons it is possible.
No. A beaver weighs less than one tenth of the average human.
A person is much more sensitive to the inner psyche. Referring to one as a "human" degrades one to nothing more than a biological category. Please be considerate in your inferences.