Just try your best anything will . q1: lt: describe the digestive and excretory systems and how they maintain balance in the body. lt: describe the structures and functions of the circulatory system and the respiratory system. lt: explain how the nervous and endocrine systems work together. pick two of the following body systems and explain how they maintain homeostasis.(2 pts for explaining the system 2 points for connecting it to homeostasis). for full credit, cite the apex section and pages from which you got your information. (2 pts) -endocrine, nervous, circulatory, respiratory, digestive q2: lt: describe the digestive and excretory systems and how they maintain balance in the body. trace the path of food as it moves through the digestive system. reference all of the following: small intestine, stomach, mouth, salivary glands, pharynx, anus, esophagus, and large intestine. q3: describe how a vaccine works. q4: lt: explain the process of human development from fertilization to birth and major changes that occur in each trimester of pregnancy. briefly summarize milestones of the first, second, and third trimester of a baby's development (2 pts ea) q5: lt: explain how the nervous and endocrine systems work together. explain how the nervous and endocrine systems work together.