Independent Variable: flight
Dependent Variable: size of parachutes
Controlled Variables: precipitation, wind speed, person using parachute (weight), and the shape of the parachute.
The question is slightly broad; it does not specify whether the experiment focuses on the quality of the flight (stability in the air), speed of descent, or the distance it can travel. However, this is what I have come up with.
Answer:
B. It provides the code for the protein
Explanation:
Remember that mRNA stands for Messenger RNA.
Answer:
D
Explanation:
The main function of the digestive system is to break down and absorb foods and nutrients and digest food.