Question

1. how does the sequence of nitrogenous bases in dna affect an organism? a. it controls the organisms environment b. it determines the organisms age c. it dictates the organisms habitat d. it influences the organisms characteristics 30. which of the following is an example of a scientific theory? a. newtons law of universal gravitation b. the structure of dna as a double helix c. the day/night cycle d. the formula f = ma 31. why is replication important in scientific experiments? a. to introduce new variables b. to confirm the reliability of results c. to avoid data analysis d. to finalize the hypothesis

Explanation:

• For question 29: The sequence of nitrogen - containing bases in DNA forms genes which code for proteins that influence an organism's characteristics. It doesn't control the environment, determine age, or dictate habitat directly.
• For question 30: Newton's law of universal gravitation is a well - established scientific theory that explains the gravitational force between objects. The structure of DNA is a scientific discovery, the day/night cycle is a natural phenomenon, and F = ma is a formula.
• For question 31: Replication in scientific experiments is done to confirm the reliability of results. It doesn't introduce new variables, avoid data analysis, or finalize a hypothesis.

Answer:

1. d. It influences the organism's characteristics
2. a. Newton's law of universal gravitation
3. b. To confirm the reliability of results