The organ systems responsible for integration and coordination are the nervous and endocrine systems. a) true
b) false

Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.

One of the main challenges that the colonists faced was the

Which of the following are ways that a citizen can address issues in the nation? learn how government works first. give money to special interest groups. volunteer to special interest groups. study the record of representatives and vote in elections. employ executive restraint in the office of the u.s. president.