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Brewer's Fossils and Evolution Assessment Flashcards | StudBud
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Brewer's Fossils and Evolution Assessment
Brewer's Fossils and Evolution Assessment
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1
Which of these is the 3
rd
stage of fossil formation?
Time passes and sediment layers continue to build up on the organism
Time passes and sediment layers continue to build up on the organism
Minerals seep into the organisms body and replace it with stone
The organism dies and its body is covered with a layer of sediment
2
Jon finds rock that has foot prints pressed into it. Which of these statements is correct about Jon's find?
It is not a fossil because only whole organisms are fossils
It is a fossil only if actual parts of the organism are in the rocks nearby
It is not a fossil because foot prints are not fossils
It is a fossil, foot prints imbedded in rock are trace fossils.
3
Which of the following are the four important parts of Darwin's theory of natural selection?
Overproduction, genetic mutation, dissection, adaptation
Under production, genetic identity, breeding, adaptation
Under production, genetic similarity, selective breeding, adaptation
Overproduction, genetic variation, selection, adaptation
4
______________ is the difference in inherited traits an organism has from others of the same species.
fossils
traits
variation
genes
5
The _________ ___________ is made up of fossils that have been discovered around the world.
sedimentary layer
index fossil
fossil record
geological record
6
The fossil record shows "the history of life in the geologic past." Which statement is true?
Fossils are often found in sedimentary layers of the earths crust
The sequence of species, transitional fossils fill in gaps
Fossil from older layers have similar molecular structure to modern life
A complete record of the order in which life appeared on Earth
7
Scientists use "common structures" to identify ancestral relationships. Which 2 best describes their logic?
Similar structures always have the same functions
Related organisms share structural traits often reduced in size or function
Similar structures can have different functions
Related organisms have very different structural traits
8
Humans breed animals that have desired traits, to shape how the offspring look. What is this practice called?
Adaptation
Natural selection
Artificial selection
Variation
9
Which of these statements describes mold, cast, or carbon film fossil formations?
Time passes and sediment layers continued to build up on the organism
Minerals seep into the organisms body and replace it with stone
The organism completely decomposes leaving behind an imprint
The organism dies and its body is covered with a layer of sediment
10
Which of these statements is true of the fossils and the rock layers shown in the diagram?
The fossils in layer D are the most recently formed
Layer A contains the most recently formed fossils
Layer B contains the second oldest fossils
The fossils in layer B are older than the fossils in layer D
11
Arctic ice is melting, reducing the range where polar bears hunt. If polar bears cannot adapt, what may happen to them?
They may become another species
They may overpopulate
They may change the environment
They may become extinct
12
Ronald observes a sparrows nest. The table describes his findings. What part of natural selection did Ronald observe?
Selection
Variation
Adaptation
Overproduction
13
This cladogram shows the evolutionary relationships of species. Which species is most closely related to whales.
pig
camel
hippo
bison
14
Which of these is the 2
nd
stage of fossil formation?
Minerals seep into the organisms body and replace it with stone
Time passes and sediment layers continue to build up on the organism
The organism completely decomposes leaving behind an imprint
An organism dies and its body is covered with a layer of sediment
15
Evolution means
every thing can change
change over time
nothing changes over time
time changes every thing
16
Which of these is the 1
st
stage of fossil formation.
Time passes and sediments continue to build up on the organism
An organism dies its body is covered with a layer of sediment
The organism completely decomposes leaving behind an imprint
Minerals seep into the organisms body and replace it with stone
17
Which of these conditions is
least likely
to cause a species to become extinct due to environmental changes?
Specific food preferences
Less genetic variation
More genetic variation
More competition for food
18
According to scientists the oldest evidence of life on earth is
2.5 billion years ago
3.5 billion years ago
860 million years ago
1.5 billion years ago
19
Ellen notices "red kangaroos" are of several sizes and colors. What characteristic of populations is Ellen observing?
Adaptation
Variation
Evolution
Selection
