What evidence suggests that life arises relatively easily?
A) Life was present on Earth soon after the end of the heavy bombardment.
B) Life is currently present in extreme environments like deep ocean volcanic vents.
C) All organisms on Earth use DNA as their genetic material.
D) Tardigrades, small animals, can survive exposure to the near-vacuum of space.
A
You might also like to view...
Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star
Fill in the blank(s) with correct word
About how many stars are visible on a clear, dark night with the unaided eye alone?
A) A few dozen B) A few hundred C) A few thousand D) Tens of thousands E) Millions and millions
You can experience weight
A) standing on Earth's surface. B) in an accelerating elevator away from Earth. C) in a rotating habitat in space. D) all of the above
How did James Joule determine how much work is equivalent to how much heat?
a. By attaching a team of horses to cannon-boring equipment. b. By repeating Rumford's experiments but measuring the amount of heat created. c. By defining one horsepower as the rate that a very strong horse does work. d. By creating a system where he could change the heat either with work or with external heat sources. e. By heating a gram of water by one degree.