All of the following are the results of an overreactive immune system to harmless antigens except a. allergies. b. lupus. c. aids. d. asthma.

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?