Which of the following is true of a gas? a. a gas is not easily compressed because of the low intermolecular forces. b. a gas does not easily mix with other gases because of the high density of substances as gases. c. gas particles have high intermolecular forces, leading to the ability to flow easily . d. gas particles spread out to fill a container, leading to a low density of the gas.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.