What two parts of the circulatory system use one way values?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water