Read and ans

wer the questions below:

Kitty Bob

noticed that his favorite pants were not as clean

as they used to be. His friend

Tabby

told him that he should try using Clean

-

O detergent, a new

laundry soap she fo

und at Sail

-

Mart.

Kitty Bob

made sure to wash one pair of pants in plain water

and another pair in water with the Clean

-

O detergent. After washing both pairs of pants a total

of three times, the pants washed in the Clean

–

O detergent did not appear to be

any cleaner that

the pants washed in plain water

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

What enzyme is most important for dna replication and why?

Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa.which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.