BIO 1001 EXAM PRACTICE QUESTIONS
AND 100% VERIFIED CORRECT ANSWERS!!
) If you open a can of chicken noodle soup and immediately examine it microscopically, you
will find no microorganisms. If you let the open can sit on the shelf for a few weeks and
then examine it, you will find lots of microorganisms. The origin of these microorganisms is
most likely
A) spontaneous generation.
B) improper sterilization of the soup prior to canning.
C) prebiotic evolution.
D) endosymbiotic evolution.
E) airborne microorganisms.
E. airborne microorganisms
The theory that life began in the distant past from nonliving molecules that became able to
reproduce themselves is called
A) prebiotic evolution.
B) prehistoric evolution.
C) natural selection.
D) spontaneous evolution.
E) endosymbiont evolution.
A. prebiotic evolution
) The oldest fossil organisms presently known have been dated at approximately how many
years old?
,A) 4.5 billion
B) 3.5 billion
C) 1.7 billion
D) less than 1.7 billion
E) more than 4.5 billion
B. 3.5 billion
Which is the correct series of events in the evolution of life on Earth?
A) O2 → photosynthesis → aerobic metabolism
B) Aerobic metabolism → photosynthesis → O2
C) O2 → aerobic metabolism → photosynthesis
D) Photosynthesis → O2 → aerobic metabolism
D. Photosynthesis → O2 → aerobic metabolism
The earliest fossil organisms resemble modern
A) protists.
B) green algae.
C) eukaryotes.
D) prokaryotes.
E) protocells.
D. prokaryotes
The organisms originally responsible for putting oxygen in Earth's atmosphere lived
around
A) 1.5 million years ago.
,B) 2.3 billion years ago.
C) 3.5 million years ago.
D) 3.5 billion years ago.
E) 6 billion years ago.
B. 2.3 billion years ago
Probably the greatest advantage for the original multicellular organisms was their ability
to
A) use more oxygen.
B) increase their metabolism.
C) increase their food intake.
D) avoid predators.
E) photosynthesize
D. avoid predators
The first multicellular eukaryotic fossils were
A) algae.
B) fungi.
C) cyanobacteria.
D) reptiles.
E) amphibians.
A. algae
The earliest multicellular animals in the fossil record are
A) jellyfish.
, B) kelp.
C) trilobites.
D) worms.
E) cyanobacteria.
A. jellyfish
The "pre-adaptations" of early arthropods that allowed them to evolve into terrestrial
forms were
A) lungs.
B) vertebral columns.
C) kidneys.
D) exoskeletons.
E) eggs.
D. exoskeletons
The generally slow and steady succession of species on Earth has been interrupted by
A) unusually high rates of plate tectonics.
B) genetic equilibrium.
C) balanced polymorphism.
D) extreme specialization of a few species.
E) episodes of mass extinction.
E. episodes of mass extinction
The "Southern Beech" tree is found in such diverse places as Australia, South Africa, and
South America. It was not transplanted by people. How did it probably get to these widely
AND 100% VERIFIED CORRECT ANSWERS!!
) If you open a can of chicken noodle soup and immediately examine it microscopically, you
will find no microorganisms. If you let the open can sit on the shelf for a few weeks and
then examine it, you will find lots of microorganisms. The origin of these microorganisms is
most likely
A) spontaneous generation.
B) improper sterilization of the soup prior to canning.
C) prebiotic evolution.
D) endosymbiotic evolution.
E) airborne microorganisms.
E. airborne microorganisms
The theory that life began in the distant past from nonliving molecules that became able to
reproduce themselves is called
A) prebiotic evolution.
B) prehistoric evolution.
C) natural selection.
D) spontaneous evolution.
E) endosymbiont evolution.
A. prebiotic evolution
) The oldest fossil organisms presently known have been dated at approximately how many
years old?
,A) 4.5 billion
B) 3.5 billion
C) 1.7 billion
D) less than 1.7 billion
E) more than 4.5 billion
B. 3.5 billion
Which is the correct series of events in the evolution of life on Earth?
A) O2 → photosynthesis → aerobic metabolism
B) Aerobic metabolism → photosynthesis → O2
C) O2 → aerobic metabolism → photosynthesis
D) Photosynthesis → O2 → aerobic metabolism
D. Photosynthesis → O2 → aerobic metabolism
The earliest fossil organisms resemble modern
A) protists.
B) green algae.
C) eukaryotes.
D) prokaryotes.
E) protocells.
D. prokaryotes
The organisms originally responsible for putting oxygen in Earth's atmosphere lived
around
A) 1.5 million years ago.
,B) 2.3 billion years ago.
C) 3.5 million years ago.
D) 3.5 billion years ago.
E) 6 billion years ago.
B. 2.3 billion years ago
Probably the greatest advantage for the original multicellular organisms was their ability
to
A) use more oxygen.
B) increase their metabolism.
C) increase their food intake.
D) avoid predators.
E) photosynthesize
D. avoid predators
The first multicellular eukaryotic fossils were
A) algae.
B) fungi.
C) cyanobacteria.
D) reptiles.
E) amphibians.
A. algae
The earliest multicellular animals in the fossil record are
A) jellyfish.
, B) kelp.
C) trilobites.
D) worms.
E) cyanobacteria.
A. jellyfish
The "pre-adaptations" of early arthropods that allowed them to evolve into terrestrial
forms were
A) lungs.
B) vertebral columns.
C) kidneys.
D) exoskeletons.
E) eggs.
D. exoskeletons
The generally slow and steady succession of species on Earth has been interrupted by
A) unusually high rates of plate tectonics.
B) genetic equilibrium.
C) balanced polymorphism.
D) extreme specialization of a few species.
E) episodes of mass extinction.
E. episodes of mass extinction
The "Southern Beech" tree is found in such diverse places as Australia, South Africa, and
South America. It was not transplanted by people. How did it probably get to these widely
