Isometric exercise strengthens muscles without . A. contracting muscle fibers B. changing muscle length C. burning calories D. conscious effort Please select the best answer from the choices provided. A B

B. Changing muscle length.

Explanation:

Isometric exercises are stationary/static forms of exercise. They include contractions of the muscle without the movement of the affected joints. There is no change in length of the muscles since the joints are static.

This exercise is best fitted for strength maintenance. Examples include squatting,prayer and yoga pose etc.

B

Explanation:

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation: