Which of the following is a correctly balanced equation? A. 2Cu + O2 - - > 2CuO B. Mg + O2 - - > MgO2 C. 3kCl + HNO3 - - > 3HCl + KNO3 D. CaCO3 - - > CaO + CO3

Is dna a nucleic acid

if the strand of DNA with the sequence TTA mutated to TTG, would this be a silent or missense mutation

Underwater, we humans can't compete with whales and other air-breathing marine mammals, which can stay submerged for extended periods.

What instrument was necessary before the cell theory could be developed?

Which choice best describes the phosphorus cycle? A: Movement of phosphorus between the atmosphere and land. B: Movement of phosphorus in the atmosphere. C: Movement of phosphorus between land, ocean and living organisms.

How does irradiation effect tomatoes

Which of the following is a cost of urban development? A. Entertainment B. Biodiversity loss C. Cultural centers D. Employment

Jessie and Joe are both carriers of the sickle cell trait which causes sickle cell disease when present in the recessive form. What is the likelihood that they will have 2 children, both of whom have the disorder?

Which organisms are most closely related?

Which of these genes are located on the q arm of chromosome 17?