Because it has no scientific explanation. As a matter of fact it has no explanation.
The things that black cats cause bad luck are a myth, and do not have any proof or explanation, meaning it cannot be concluded neither as a hypothesis nor scientific.
Hope it helped,
BioTeacher101
Autosomal recessive inheritance: two unaffected people who each carry one copy of mutated gene for and autosomal recessive disorder (carriers) have a 25% chance with each pregnancy of having a child affected by the disorder.
The mother may feel guilty about her child's condition because she may think that the child had that disease genetically from one or both of his or her parents. The mother may exhibit signs of self-blaming because she feels like it is her fault that her child is suffering from the disease. The healthcare practitioner should approach the mother in a biopsychosocial approach wherein the mother is allowed to vent out (catharsis), then the healthcare practitioner should make things clearer (educate), and then have the appropriate action given.
Answer:
The term "symbiosis" includes a broad range of species interactions but typically refers to three major types: mutualism, commensalism and parasitism. Mutualism is a symbiotic interaction where both or all individuals benefit from the relationship.
Explanation: