Answer all questions and explain if you can. you.
these are the answers i picked but i am not sure if it is right: 1: a, 2: c, 3: b, 4: c
q1.
identical twin sibling would have the same gel electrophoresis pattern
a)true
b)false
q2.
which type of organism would have the largest genome… the most genes in its cells?
a)mosquito
b)salmonella bacteria
c)e. coli bacteria
q3.
microbes that live in our gi tract:
a) would always cause disease or make us sick.
b) are regular members of our gi ecosystem, they live with us and usually cause few problems and probably us.
c) are all genetically the same since they reproduce asexually
q4.
a ‘band’ on an electrophoresis gel is composed of:
a)agarose
b)enzyme
c)dna fragments of the same size
d)dna fragments of different sizes

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.

Which describes a grizzly bear’s habitat?

Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. kinetic energy. b. electrical energy. c. mechanical energy. d. chemical energy.