Which of the following represents a difference between rna and dna?
a
none of these are correct
b
dna contains the base thymine and rna contains the base uracil
c
rna contains the sugar deoxyribose and dna contains the sugar ribose
d
dna is single stranded and rna is double stranded

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service

What is the cause hearing loss in human being