Answer:
Ectopic pregnancy can cause the burst of fallopian tube. If previous ectopic pregnancy occured then again onset of this type of pregnancy may lead to life threatening bleeding. Having the abdominal surgery before may also proved as a risk.
Answer:
Biological: 2) not applicable for extinct species.
Morphological: 3) relies on similarities of structures. The morphology studies the structures.
Phylogenetic: based in the history of the specie
Morphological and phylogenetic : 1) acommodates asexual reproduction and 5) species acceptance criteria can be subjetive
all three: 4) used by scientists in classification
B I think cause your lifting something up?