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Unit 4 Review Quiz Flashcards | StudBud
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Unit 4 Review Quiz
Unit 4 Review Quiz
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Questions
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Answers
1
How does adaptation provide evidence for evolution?
Adaptation hides species from evolving
It doesn't
It allows favorable traits to be passed on, leading to speciation
It allows favorable traits to be selected against
2
What type of genetic drift is the picture showing?
Bottleneck
Founder Effect
Allopatric Speciation
Sympatric Speciation
3
How did polar bears evolve from brown bears?
They believed, so they acheived.
A combination of directional selection for white fur +allopatric speciation
Both Red and Blue
An accumulation of mutations that led to expression of advantageous traits
4
What are the 2 types of variation required for natural selection to take place?
Directional and Stabilizing Selection
genetic variation and variation in how genes are expressed as traits
Adaptation and genetic variation
natural selection and evolution
5
What was Charles Darwin's hypothesis?
New species evolve identically to be just like their common ancestor
New species spontaneously appear over time.
New species gradually appear through small changes in ancestral species.
Natural selection has nothing to do with evolution
6
How do homologous structures show evidence of evolution
Analogous structures provide evidence of common ancestry
Similar structures across species came from a common ancestor
Homologous structures are non-similar structures
Homologous structures have the same function but organisms are not related
7
Charles Darwin's Theory of Evolution states that _________ is the mechanism for evolution.
evolution
natural selection
fitness
trait
8
Which correctly explains why marine organisms can be found high up in mountain ranges?
plate tectonics
Wind
People moved them
Aliens
9
What is the Law of Superposition state?
The oldest known fossils are at the bottom of the rock layer
The youngest fossils are in the middle of the rock layer.
The youngest fossils are at the bottom of the rock layer
The oldest known fossils are at the top of the rock layer
10
Divergent Evolution is when 2 organisms with a common ancestor diverge into separate species.
False
True
11
Why do dominant traits increase in a population over time while recessive traits decrease?
Dominant traits are selected for because of competitive advantage + fitness
Species can choose which type of trait they want to express
Recessive traits result in increased fitness
Recessive traits are selected for because of competitive advantage
12
Which is not a type of adaptation
mimicry
antimicrobial resistance
camoflauge
directional selection
13
An alternative form of a gene is called a(n) ____________.
mRNA
allele
gene
fossil
14
What type of natural selection is depicted below?
Directional Selection
Stabilizing Selection
Disruptive Selection
Non Selection
15
Which of the 4 basic principles of Natural selection is FALSE?
Individuals in a population show variation in traits
traits that increase fitness have a greater chance of being passed on
none of the traits are inherited
some offspring survive on available resources
16
According to the Endosymbiont Theory, what was engulfed by an early eukaryote?
protists
mitochondria and chloroplast
prokaryote
Nucleus
17
The Central Dogma of Genetics Explains...
DNA --> mRNA --> Protein
DNA-->Protein-->mRNA
mRNA--> DNA-->Protein
Translation--> Transcription
