1. which system coordinates the body’s response to changes in its internal and external environment? .
lymphatic system.
nervous system.
excretory system.
reproductive system.
2. look at figure 30–1. in which structure is water extracted from digested food?
(0 pts) b.
(0 pts) d.
(0 pts) g.
(1 pt) h.
3. read the following statements that describe how information flows in the nervous system. what is. the correct order in which they occur? .
1) response is carried to glands or muscles.
2) information is processed and

Which of the following represents the results of a review of well-controlled studies of vitamin c supplementation on the resistance to, and recovery from, colds? there was a reduction in the duration of colds by 50% on the average. there was a slight effect on reducing the duration and severity of colds for people taking vitamin c supplements. there was a significant reduction in the duration of colds in people who consumed at least one gram a day. there was a significant reduction in the number of colds only in people who consumed > three grams per day.

Which is an example of a food group? a. oils b. vegetables c. water d. sweets

Explain what is meant by the phrase “ethical behavior”.