Human adaptations do not exist independently of one another. In real life, of course, each population, and each individual within that population, has numerous coexisting adaptations. Ignore what you know of your family history and consider only your own physical traits for the following adaptations: skin color, lactose tolerance, and body shape. Place marks on the map on p. 251 of your lab manual to show in which parts of the world each of these traits may have originated in your ancestors. (Be sure to label the marks to indicate which trait is being mapped.) Do all three of your traits suggest similar ancestry?

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.