Which of the following is not a way that the cardiovascular system to maintain homeostasis? .
a. the heart increases or decreases its rate of contraction to accommodate body needs for blood circulation.
b. the blood vessels expand or constrict to regulate blood flow to certain areas of the body..
c. the blood carries nutrients to the tissue cells and waste products away from the tissue cells..
d. the heart produces hormones that are released into the body.

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport