DNA is a COMBINATION of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base.
Active transport, which occurs at the expense of energy.
Answer:
The Z lines and H- zone shortens during the muscle contraction.
Explanation:
Sarcomere is the area between the two Z lines. The Z- lines are present in the centre of I - band and H - zone is present in the A - band. The actin filaments which are thin filaments present in I- band and contracts, slide over the myosin filament during contraction.
The I - band, H- zones are became shortens as they are thin than the A- band. It is anisotropic band having thick myosin filaments. They are not flexible and remain in its constant shape during the muscle contraction.
After the muscle contraction, the A- band and the H- zone comes to their original shape. In other words, the sarcomere shortens and comes back during muscle contraction, and relaxation.
Which 2 species? like I need to know in order to tell you
Answer:
Less water.
Explanation:
If the plant is "drought-resistant" then that should mean less water is required for the plant to perform photosynthesis.
