Which does not describe a cause of the spanish-american war in 1898? a. americans believed that the spanish had sunk the battleship u. s.s. maine. b. spanish authorities in cuba were accused of atrocities against the people. c. president mckinley declared war to his chances of winning reelection. d. yellow journalism stirred up pro-war fervor in the american public.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Which action is a reflex action. a. asking for coffe in a cold climate b. blinking when light is flashed in the eyes c. drinking water when thirsty. d. swallowing food e. taking an exam