A book is being publicized that purports to provide proof that aliens from another planet brought life to Earth. The proof they show are strange fossils of multicellular organisms that look like no animal you have ever seen
What group actually includes these "aliens"? A) organisms with adaptive radiation
B) the Ediacaran fauna
C) ancient archaea
D) endosymbiotic organisms
B
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Sea snakes are valued for their exotic skins
Indicate whether the statement is true or false
The movement of an action potential along a neuron is most like ________
A) the ripples created by dropping a pebble into a pond, gradually decreasing in size as the waves spread apart B) a crowd at a sporting event doing the wave around a stadium C) a radio tower emitting a signal that reaches only a small region D) the sound of your voice spreading out as you yell loudly to your friend while at a park
Which of these would be an example of a NON-scientific study?
A) A company uses different advertising methods for a product to determine which one produces the most sales. B) NASA sends tadpoles up in the space shuttle to see how gravity affects their development. C) A study determines differences in the species composition in two parks. D) Consumers are asked which tomato variety produces the best-tasting spaghetti sauce. E) People are immunized with different vaccines to determine their relative effectiveness against the flu virus.
The (intestines/nasal cavities/lungs) are normally axenic
What will be an ideal response?