Many bacteria do not interact with humans, but those that do can always be classified as either harmful or not harmful to humans. true or false?
select one:
a. true. they always either hurt us or they don't.
b. false. some are fine in small numbers, but in big numbers they can overwhelm the immune system and cause problems.
c. false. some get worse as they age.
d. true. once they mutate to be harmful, they stay that way.

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. threat method number of species that benefit number of years to see benefit habitat fragmentation reforestation 450 8 introduced prey species biological augmentation 150 2 which statement is an accurate explanation of the information in the table? a. biological augmentation would benefit only a few species because it is typically not very effective. b. biological augmentation would take less time to be effective because it targets the majority of prey species. c. reforestation would take the longest time to be effective because trees take several years to grow. d. reforestation would not benefit many species because most forest species live on the ground.