The prevalence of alzheimer's dementia is very high among residents living in nursing homes. a student concludes that it is likely that living in a nursing home causes alzheimer's dementia. what is the flaw in the student's reasoning?
a. the student is drawing a false conclusion by making the mistake of omitting critical variables such as the age and gender of the residents.
b. the student is using an inadequate sample size.
c. the student is drawing a false conclusion; he is making the error of reverse causality.
d. the student has failed to take into account other causes of alzheimer's disease.

the answer is 1. photosynthesis. glad to

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

lipid

explanation:

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.