Biology, 30.06.2019 01:30 algahimnada
E. coli is a species of bacteria that causes many different infections in humans. certain e. coli strains have developed resistance to antibiotics, making infections with these strains difficult to treat. how do bacteria such as e. coli, which reproduce asexually, gain new traits such as antibiotic resistance? a. by mutating their dna in response to environmental conditions to gain beneficial traits b. by adapting to changes in environmental conditions without undergoing changes in their dna c. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population d. by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
Answers: 1
Biology, 21.06.2019 19:00
Granite rock is light in color. which feature directly contributes to this color? the process that forms granite the amount of silica minerals in granite the shape of the grains found in granite the unique pattern formed by grains in granite
Answers: 1
Biology, 22.06.2019 04:30
Study this image which statement best describes the rock shown check all that apply
Answers: 3
Biology, 22.06.2019 13:50
The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?
Answers: 2
E. coli is a species of bacteria that causes many different infections in humans. certain e. coli st...
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