What characterizes a system at equilibrium?
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A. There is no net change to the system.
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B. The system has stopped changing.
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c. The system cannot undergo change.
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D. The system is changing at an even rate.

Explain why scientists use shared characteristics to make cladograms.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

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.