An area of land or water set aside for the protection of an ecosystem is a

2. what process do mrna and trna work together to complete? (3 points)

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical. twenty persons were tasters. how many had heterozygous genes? 10 20 0-20 indeterminate