Why are individuals with hiv able to contract diseases that are rare to the rest of the populations?
a) hiv releases pheromones that attract the rare diseases.
b) hiv releases substances that increase the strength of the disease causing organisms
c) people with hiv are unable to fight off these rare diseases.
d) people with hiv are more often exposed to these rare diseases.

Red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the f1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

Development has provided electrically for less money but what may be considered a cause of nuclear power