Section 14.2:
The Origin of Life
1.
Which scientist's work disproved the theory of spontaneous generation of microorganisms?
a.
Stanley Miller
b.
Alexander Oparin
c.
Harold Urey
d.
Louis Pasteur
Hint
2.
Scientists theorize that the first forms of life may have been __________.
a.
maggots
b.
heterotrophs
c.
formed through spontaneous generation
d.
complex eukaryotic cells
Hint
3.
Some scientists hypothesize that the first life forms on Earth evolved from _______.
a.
a protocell
b.
biogenesis
c.
primordial soup
d.
archaebacteria
Hint
4.
Which hypothesis on the origin of life states that proteins, lipids, and other complex organic molecules formed when energy from the Sun and other sources caused chemical reactions among gases in Earth's prehistoric atmosphere?
a.
biogenesis
b.
self-replicating molecules
c.
spontaneous generation
d.
primordial soup
Hint
5.
What is the difference between spontaneous generation and biogenesis?
a.
Spontaneous generation proposes that nonliving materials can produce life, while biogenesis follows the idea that living things come only from other living things.
b.
Spontaneous generation and biogenesis both support the theory that nonliving materials are the source of living organisms.
c.
Spontaneous generation applies only to plants and how they produce life, while biogenesis applies to animals and how they produce life.
d.
Biogenesis supposes that nonliving materials can produce life, while spontaneous generation follows the idea that living things come only from other living things.
Hint
