The forces of attraction between the particles of a matter sample are strong and draw particles together, keeping them in their place. This is an example
O A) of the liquid state of matter
OB) of the solid state of matter
O C) of superficial tension
D) of viscosity

What came first egg or chicken? and is tomato a vegetable or a fruit?

What are levels of ecology and how can we remember them

You are studying several alleles of an e. coli helicase gene. one allele, called rsr, confers resistance to rs2014, an antibiotic that works by inhibiting helicase activity. bacteria with the rss allele are sensitive to rs2014. another allele, called ts-, produces a temperature sensitive mutation of the helicase. in bacteria with the ts- allele, helicase is inactivated at 42 °c but functions normally at 37 °c. helicase functions normally at both temperatures in bacteria with the ts allele. you obtain the following data while testing four strains of e. coli at different temperatures and doses of rs2014. each number represents the percentage of maximal dna synthesis. based on this data, assign the appropriate genotype to strains a–d in the spaces provided