the level of organization in living things is cells, tissues, organs, and. .

a functions.
b organelles.
c systems.
d ecosystems.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

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

Pulmonary arteries carry highly oxygenated blood. true or false?