Although the digestive system is primarily responsible for the breakdown of food, this process can be disrupted if the circulatory system malfunctions. the best explanation for this disruption is that: a. human body systems interact with each other to perform life functions
b. the circulatory system is the control center of the body
c. the digestive system and the circulatory system have many organs in common
d. the circulatory system is responsible for the coordination of life functions, including the breakdown of food

Identify the advantages and disadvantages or renewable and nonrenewable energy resources

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems