A
B
C
D
E
100
Physical evidence of an organism that lived long ago that scientists use to study the past; evidence may appear in rocks, amber, or ice.
fossil
100
Idea that living organisms come only from other living organisms.
biogenesis
200
Large, ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division.
protocell
200
Mistaken idea that life can arise from nonliving materials.
spontaneous generation
300
Geological explanation for the movement of continents over Earth's thick, liquid interior.
plate tectonics
300
Chemosynthetic prokaryotes that live in harsh environments, such as deep-sea vents and hot springs.
archaebacteria
M
e
n
u