C14
1. The purpose of the covered flask in Francesco Redi’s
1668 experiment was to .
1.
trap flies inside the flask with the meat
2.
prevent flies from laying eggs
3.
prove spontenous generation was correct.
2. What was the source of the original atmosphere of early
Earth?
1.
volcanoes
2.
meteorite impacts
3.
outgassing from rocks
3. Which option places the likely events in the origin of life
in the correct order?
1.
synthesis of proteins / abiotic synthesis of amino acids and other organic
molecules / development of a genetic code / evolution of cells
2.
abiotic synthesis of amino acids and other organic molecules / synthesis of
proteins / evolution of cells / development of a genetic code
3.
abiotic synthesis of amino acids and other organic molecules / synthesis of
proteins / development of a genetic code / evolution of cells
4. What assumption must be made to calculate an age
using radiometic dating?
1.
the amount of the isotopes measured in the material
2.
the rate of decay of the isotopes
3.
the amount of the isotopes present in the material when it formed
5. Which of these is evidence for the endosymbiont
theory?
1.
Mitochondria and chloroplasts both transform energy from one form to
another.
2.
Mitochondria and chloroplasts cannot live on their own outside a cell.
3.
Mitochondria and chloroplasts contain their own circular DNA
6. What is the difference between a cast fossil and a mold
fossil?
1.
A mold fossil is an impression in rock, but a cast fossil is an impression that
was filled in with minerals.
2.
A cast fossil is an impression in rock, but a mold fossil is an impression that
was filled in with minerals.
3.
They are two terms for the same kind of fossil.
7. While looking for fossils you discover fossil coral and
fish in one layer. In a layer just above, you find the
fossil imprint of a fern and some fossil moss. What
happened?
1.
A saltwater sea had changed to a freshwater lake long ago.
2.
The area had been a sea until recent times.
3.
In ancient times a sea had been replaced by land.
8. Consider a fossil find containing dinosaur nests, broken
eggshells, and embryos. The shells and bones appear to
have some original material and some mineralization.
How would you classify it regarding fossil type?
1.
trace
2.
original material
3.
trace, replacement, and original material
9. What would you expect the half-life of the isotope used
to date the age of Earth at 4.6 billion years to be?
1.
5730 years
2.
100,000 years
3.
1,000,000,000 years
10.
Which is an accurate statement of the differences
between spontaneous generation and biogenesis?
1.
Spontaneous generation is the idea that life can only come from life, while
biogenesis is the outdated notion that animals arise from nonliving elements of
their environment.
2.
Spontaneous generation and biogenesis are two names for the same principle
concerning the origin of life.
3.
Spontaneous generation is the idea that life can come from nonliving
components, while biogenesis is the more modern concept that life can only arise
from another living organism
11.
Bat droppings that has built up in a 2-meter layer
on the floor of a cave. At a depth of 0.75 m, only 25% of
the original amount of carbon-14 left. The half-life of
carbon-14 is 5730 years, how old is the guano at that
level?
1.
5730 years
2.
17,190 years
3.
11,460 years
12.
What does relative dating depend on to identify
similarly aged rocks in different locations?
1.
the kinds of fossils found in the rock
2.
the position of the rock layer
3.
the radiometric age of the rocks
13.
Relative dating in the geological record depends on
an assumption about the strata of sedimentary rock
called the law of
1.
Biogenesis
2.
Superposition
3.
Relativity
14.
The endosymbiont theory is an explanation of the
origin and evolution of ..
1.
prokaryotes
2.
plants
3.
eukaryotes