D. testes maybe
I don't know that is the only reasonable explaination.
The nucleus basically controls every activity in the cell so, the nucleus is transferring proteins, nutrients, waters and salts to provide for the cytoplasm which takes up space in the outside of the nucleus.
The act of strengthening the muscles of the abdomen and torso is <u>core strengthening.
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Explanation:
The core is the central part of the body comprised of about 35 (major and minor) muscle groups which connect to the pelvis, spine and hip area. These can be broadly grouped as the abdominals, back extensors, hip, and lateral trunk muscle groups.
The core area is the centre of gravity and stability for all bodily movements.
Strength of core muscles is very important especially to athletes and sports persons. Weakness of core muscles leads to general body weakness and fatigue, muscle injuries like sprains, less endurance and power, back pain, and poor posture.
Core strengthening exercises are done to train the core muscles and strengthen them and work in harmony for better body balance, stability, and movement. Core strengthening exercises include crunches, plank, L-sit, sit-ups, push-ups etc
Meat and beans both have protein which is beneficial to your health.