Unfortunately, the text itself is not provided. Therefore, I cannot quote the sentences in which the words and word combinations are used.
However, based on my knowledge of biology, here are some example sentences that might use these terms:
- Main systems of the body: "The main systems of the body, such as the circulatory, respiratory, and digestive systems, work together to maintain homeostasis."
- The skeletal system: "The skeletal system provides support and structure to the body, allowing us to stand upright."
- To move about: "Muscles contract, allowing animals to move about in their environment."
- A complex information system: "The nervous system acts as a complex information system, transmitting signals throughout the body."
- To be pumped through the blood vessels: "Blood is pumped through the blood vessels by the heart, delivering oxygen and nutrients to the tissues."
- Transportation system: "The circulatory system functions as the body's primary transportation system, carrying essential substances to cells and removing waste products."
- A number of associated glands: "The endocrine system consists of a number of associated glands that secrete hormones."
- To convey oxygen until it is discharged: "Red blood cells convey oxygen until it is discharged into the body's tissues."
- A large number of activities: "The brain controls a large number of activities, including thought, emotion, and movement."