Early-onset alzheimer’s disease affects people under the age of 65. less than five percent of people who are diagnosed with alzheimer’s disease have this type. many cases of early-onset alzheimer’s disease are inherited, a type known as familial alzheimer’s disease (fad). which statement is best supported by this information?
f) fad is the result of a genetic change in one or more chromosomes.
g) natural selection will continue to reduce the incidence of fad.
h) fad affects only the genes of middle-aged people.
j) deletion of one amino acid causes fad.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Which best describes carbon dioxide’s path out of the body

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area