Exam 26: Astrobiology

Molecular biologists must determine the order in which the ____ occur along the DNA ladder.

_______________ are fossilized remains of colonies of single-celled organisms that built up layer after layer of trapped sediments.

Aside from Earth, Venus is the most likely place for life to exist in the Solar System.

Discuss the Miller-Urey experiment. What did these scientists had set out to prove?

Jupiter's moon _______________ appears to have a liquid-water ocean below its icy crust and may contain minerals as a source of raw material for chemical evolution.

Why is it difficult to find fossils representative of the time that life began on Earth?

Which telescope did astronomers use in 1974 to send an anticoded message to globular cluster M13?

A(n) _______________ can thrive in extreme conditions, such as ice-covered lakes in Antarctica, far underground inside solid rock, amongst the cinders of summits of extinct volcanoes, or in pools of acids.