When a dog is sleeping and does not react to the sound of a person walking around the house, that is most likely an example of?

Dementia.

Explanation:

Dementia is a mental disorder with memory loss, problem-solving, etc. This problem is also found in canines. This disorder occurs due to depression, etc. The symptoms of dementia in canine includes lethargy, sleep disorders, forgetting learned behaviours, etc.

In the given case, the dog who does not react to the sound of a person walking around the house is most likely to suffer from dementia. Dementia causes a canine with the loss of interest in energy and ethusiasm, which is s sign of active canine.

Thus the correct answer is dementia.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

i believe it is c: genes for body color and wing size are inherited separately from each parent.