During concussion (a type of traumatic brain injury) the brain will move within the cranial cavity. damage is caused to the brain as it crashes into parts of the bony cavity walls
ironically one of the bone markings that can cause serious damage to the brain is the this is ironic because one of the functions of this bone marking is to
a) perpendicular plate; separate the left and right halves of the nasal cavity
b) pterygoid processes; anchor important chewing muscles
c) styloid process; attach to and support the hyoid bone
d) crista galli; attach to the dura matter holding the brain in place

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )