Because it is direct contact of the molecules in the air and the land that are touching.
The central dogma of biology, or the mechanism of reading and expressing genes in all living things, can be expressed as follows: DNA->RNA-> proteins. True ... ribosome protein translation. In translation, _____ interprets the mRNA codon sequence.
The answer is A.) carbon dioxide, water, oxygen, nitrogen, and hydrogen
Hope this helps
Feel free to ask anymore questions here at brainly.com
Scientists often perform experiments to check and recheck their work. They also redo these experiments to ensure correct results.
Albert, a student researcher, varies the amount of food given to rats in an experiment to measure the effect on their learning behavior. In albert's study, the amount of food given is the independent variable.
An independent variable is under the control of the experimenter. Independent variable does not depend on the other variables involved in the experiment. Since the amount of food is varied, it is not depending on other variables like size of mice, weight, etc.
