Bio 1001 Final comprehensive Questions
and Answers with Verified Solutions
Question 1:
) 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.
Answer:
E. airborne microorganisms
Question 2:
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.
Answer:
A. prebiotic evolution
Question 3:
) 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
Answer:
B. 3.5 billion D. Photosynthesis ’ O2 ’
,Question 4:
Which is the correct series of events in the evolution of life on Earth? A)
O2 ’ photosynthesis ’ aerobic metabolism
Answer:
aerobic metabolism
Question 5:
The earliest fossil organisms resemble modern A) protists. B) green
algae. C) eukaryotes. D) prokaryotes. E) protocells.
Answer:
D. prokaryotes
Question 6:
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.
Answer:
B. 2.3 billion years ago
Question 7:
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
Answer:
D. avoid predators
, Question 8:
The first multicellular eukaryotic fossils were A) algae. B) fungi. C)
cyanobacteria. D) reptiles. E) amphibians.
Answer:
A. algae
Question 9:
The earliest multicellular animals in the fossil record are A) jellyfish. B)
kelp. C) trilobites. D) worms. E) cyanobacteria.
Answer:
A. jellyfish
Question 10:
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.
Answer:
D. exoskeletons
Question 11:
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.
Answer:
E. episodes of mass extinction
and Answers with Verified Solutions
Question 1:
) 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.
Answer:
E. airborne microorganisms
Question 2:
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.
Answer:
A. prebiotic evolution
Question 3:
) 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
Answer:
B. 3.5 billion D. Photosynthesis ’ O2 ’
,Question 4:
Which is the correct series of events in the evolution of life on Earth? A)
O2 ’ photosynthesis ’ aerobic metabolism
Answer:
aerobic metabolism
Question 5:
The earliest fossil organisms resemble modern A) protists. B) green
algae. C) eukaryotes. D) prokaryotes. E) protocells.
Answer:
D. prokaryotes
Question 6:
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.
Answer:
B. 2.3 billion years ago
Question 7:
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
Answer:
D. avoid predators
, Question 8:
The first multicellular eukaryotic fossils were A) algae. B) fungi. C)
cyanobacteria. D) reptiles. E) amphibians.
Answer:
A. algae
Question 9:
The earliest multicellular animals in the fossil record are A) jellyfish. B)
kelp. C) trilobites. D) worms. E) cyanobacteria.
Answer:
A. jellyfish
Question 10:
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.
Answer:
D. exoskeletons
Question 11:
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.
Answer:
E. episodes of mass extinction
