Which is not true of lipids? a. they supply cells with energy. b. they form structural parts of cell membranes. c. the carry fat-soluble vitamins to cells. d. they supply cells with nitrogen.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Explain how scientists use geologic time to determine the age of landforms.

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