Microorganisms include a wide variety of bacteria, protozoans, fungi and other organisms that can only be seen with a microscope. based on the text referenced above, what conclusion would you reach about microorganisms? a) bacteria outside the intestine are always harmful to humans. b) bacteria are the only microorganisms that can be both and harmful. c) one general type of bacteria can have various forms that cause different reactions. d) the bacteria in our intestines protect us from other microorganisms that can be found in water.

What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination

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.

Explain the process that creates the heat of the sun?