I know that B applies, and D might apply assuming it means certain materials can pass through and not all materials can pass through.
skeletal system and the muscular system,
Muscles are attached to the skeleton and work assuming that the skeleton is there; for example, there is no muscle that makes sure you don't bend the middle of your arm, as it's stable because there is a bone in it. Basically, the skeleton is a scaffolding for the muscles.
the skeletal system and the nervous system,
Many nerves run along the skeleton, or even inside the bones, and the bones protect the nerves; for example in the spinal cord
the muscular system and the nervous system.
The Nervous system controls the muscles; it sends the muscles commands
The chamber of the heart through which blood leave to go to the body are the ventricles.
<h3>What is the heart?</h3>
The heart is the organ that is responsible for pumping blood around the body. The heart has four chambers and two upper and two lower chambers. The upper chambers of the heart are responsible for receiving blood while blood leaves the heart via the two chambers below.
The name of the two chambers that are found below the heart is ventricles. Thus, the chamber of the heart through which blood leave to go to the body are the ventricles.
Learn more about the heart:brainly.com/question/28465505
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Progressively Overloading his muscles, assuming he is doing weight training, to increase strength over time. he should not stay with the same weight for two months, unless he can perform more reps with better form over time.
You’re correct in my opinion they all seem to be contamination
