Integumentary system which statement explains the sarcomere appearance change during a muscle contraction
a. the light a bands remain at a constant length
b. the i bands lengthen
c. the i bands will only consist of thin filament
d. the h zone shortens as actin filaments slide towards the m-line

The correct answer is letter "A": The light A bands remain at a constant length.

Explanation:

In front of muscle contraction, the A-bands do not change their length, while the I-bands and the H-zone shorten. It provides a closer connection between the Z axes. The protein -tropomyosin- protects the actin molecules in the muscle cell's myosin binding sites.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

the packers and the chiefs played in the first super bowl, which was held in los angeles in 1967. -is the sentence that would stand out the most when scanning a paragraph.