He fills one car with normal gasoline and another identical car with new gasoline. which is the control group

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation

Wolves are predators of deer what is mostly to happen to the deer population of the wolf population increased

During a natural disaster, part of a plant was damaged. if the plant can no longer grow, and produce new root cells, which part of the plant likely suffered damage? a. phloem b. xylem c. apical meristem d. root cap