stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
SBI3UI Evolution Review Flashcards | StudBud
Explore
/
SBI3UI Evolution Review
SBI3UI Evolution Review
28 terms
·
StudBud Administration
·
198 plays
A biology review quiz
Flashcards
28 cards
F
Practice quiz
P
Host live
L
Questions
28
Answers
1
What are fossils?
something that has decayed
remains from an organism that lived in a past geological time
old people
a rock layer
2
In a population of 100, how many alleles for
one
trait (E.g. Hh) are in the gene pool?
impossible to calculate
200
100
50
3
A farmer selecting the largest fruit trees to pollinate is an example of...
artificial selection
homology
natural selection
biogeography
4
What do we mean by "descent with modification?"
ancestors modified their bodies by use or disuse
species develop changes over time to become different from their ancestors
over our lifetime, we modify our appearances
5
Who believed organisms evolved because they needed to develop a trait to survive?
Lamarck
Malthus
Darwin
Franklin
6
Genetic drift can result in an entire allele being wiped out from the population.
True
False
7
More recently, scientists use ____ homologies to create phylogenetic trees.
embryonic
vestigial
biochemical (DNA)
anatomic
8
Rheas, Emus, and Ostriches aren't related, but they look very similar. This is an example of...
vestigial structures
artificial selection
homologous strucures
analogous structures
9
What type of selection pattern is this?
Directional
Disruptive
Stabilizing
10
What is this?
vestigial structure
embryonic homology
anatomic homology
molecular homology
11
True or False: Acquired characteristics developed during ones lifetime can be inherited
False
True
12
Behavioural isolation is a postzygotic isolating mechanism.
False
True
13
What is this showing?
molecular homology
vestigial structure
anatomical homology
embryonic homology
14
A wildflower population is caught in a fire. Half the flowers die. What is this an example of?
gene flow
the bottleneck effect
the founder effect
migration
15
Zygotic mortality is a prezygotic reproductive isolating mechanism.
True
False
16
What are missing links?
similar body structures between species
fossils that show features midway between ancient and modern species
similar embryonic stages between species
similar molecules between species
17
Why were geologists important in developing the theory of evolution?
they suggested the world was really old
they believed in the biblical creation stories
they were Darwin's friends
they proposed evolution by natural selection
18
A group of Dutch colonists arrive in South Africa and set up camp. This is..
The founder effect
gene flow
The bottleneck effect
migration
19
Allopatric speciation can occur when a population becomes geographically isolated.
True
False
20
What type of selection pattern is this?
Stabilizing
Directional
Disruptive
21
What is NOT a component of natural selection?
variable fitness
struggle for survival
variation within a species
bones fossilize in mineralized sediments
22
What type of selection pattern is this?
Stabilizing
Directional
Disruptive
23
What is an analogous structure?
a vestigial structure
a similar feature that does NOT indicate a common ancestor
a similar feature that indicates a common ancestor
24
Which of the following is not a postzygotic isolating mechanism?
zygotic mortality
hybrid infertility
hybrid mortality
mechanical isolation
25
A coral releases sperm into the ocean currents, to randomly find an egg. This is an example of
behavioural isolation
temporal isolation
gametic isolation
mechanical isolation
26
I find a fossil buried deep in the earth. The depth allows me to conclude...
the type of organism
the relative age
the strata depth doesn't tell us anything
all the descendants
27
What is an adaptation?
a trait that increases an organism's ability to survive
the struggle to survive
a measure of reproductive success
28
What do we mean by fitness?
variation within a species
struggle to survive
measure of reproductive success
