What does the "t" in "killer-t-cells" stand for?

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.