Example of ecosystem?

Donde se encuentra el adn nuclear en un organismo eucariota?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

What is any method of measuring the age of an object or event in years, such as using atomic half-life?