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IB Biology 2023 - D4.1 Natural Selection (SL) Flashcards | StudBud
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IB Biology 2023 - D4.1 Natural Selection (SL)
IB Biology 2023 - D4.1 Natural Selection (SL)
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Answers
1
The coconut palm has a...
slow breeding rate
fast breeding rate
2
________ results from having adaptations for a specific niche within an ecosystem.
Welness
Health
Fitness
Robustness
3
Exaggerated traits can show that a male...
is a good mate
feeds efficiently
is well-adapted
has suffered beneficial mutations
4
The picture is an example of...
Variation
Survival of the fittest
Producing more offspring than the environment can support
Inheritance of favorable features
5
The carrying capacity is determined by...
the limiting resource that is most abundant in supply.
the limiting resource that is in the shortest supply.
6
Select the examples of courtship behavior in animals.
Fighting
Displaying exaggerated anatomical features
Hibernation
Behavior patterns, such as dancing
7
Is evolution a rapid or gradual process?
Mostly rapid.
Mostly gradual.
8
The theory of evolution by inheritance of acquired characteristics.
Lamarckism, by Jean-Baptiste Lamarck
Natural Selection, by Charles Darwin
9
What are the causes of variation in populations?
Asexual reproduction
Sexual reproduction
Mutations
Meiosis
10
Somatic mutations are a change to a person’s DNA that occurs after conception to any cell that isn’t a _____.
body cell
germ cell
11
Differences in adaptation are one of the strongest pieces of evidence of the theory of Natural Selection.
True
False
12
There is not strong evidence for Darwin's theory of natural selection.
True
False
13
A density-dependent factor causes either _______ or _______.
birth rate to fall --- death rate to increase
birth rate to rise --- death rate to decrease
14
Fitness influences whether or not an individual survives and reproduces.
False
True
15
The picture is an example of...
Variation
Producing more offspring than the environment can support
Inheritance of favorable features
Survival of the fittest
16
It involves the fusion of male and female gametes.
Sexual reproduction
Mutation
Asexual reproduction
Meiosis
17
If a Himalayan rabbit changes color, this color change...
is not inherited by its offspring
is inherited by its offspring
18
The fungus known as giant puffball has a...
fast breeding rate
slow breeding rate
19
Darwin pointed out that overproduction of offspring results in a struggle for existence within a population. Why?
Not every individual will obtain enough to survive and reproduce.
There is no variation in the population
There is competition for resources
There are higher rates of mutation
20
It is a source of variation because of crossing over and the independent orientation of bivalents.
Mutation
Meiosis
Asexual reproduction
Sexual reproduction
21
Is the competition for reproduction an example of intraspecific or interspecific competition?
intraspecific
interspecific
22
These are examples of density-independent selection pressures.
CO2 levels
Temperature
Fire
Floods
23
Do most organisms show a slow or fast breeding rate?
Fast breeding rate
Slow breeding rate
24
New alleles are produced by _______, which enlarges the gene pool of a population.
Mutation
Sexual reproduction
Meiosis
Asexual reproduction
25
Some individuals in a population are ________ than others due to ________.
more varied --- fitness
fitter --- variation
26
What is true about epigenetics?
Epigenetic tags can be passed on to offspring
Epigenetic tags are chemical markers
Epigenetics is a change in the base sequence of genes
Epigenetics is a pattern of gene expression
27
The southern ground hornbill (
Bucorvus leadbeateri)
has a...
slow breeding rate
fast breeding rate
28
The Himalayan rabbit color change is an example of acquired traits caused by...
the environment
the interaction between genes and the environment
mutation
29
It is the only source of variation in species that do not carry out sexual reproduction.
Sexual reproduction
Asexual reproduction
Meiosis
Mutation
30
Endler found out that in the parts of streams where there were fewer predators, male guppies were ______.
more colorful.
less colorful.
31
Sexual selection is a type of selective pressure.
True
False
32
Elephants have a...
slow breeding rate
fast breeding rate
33
Natural selection can only occur if there is variation within a population.
False
True
34
These are examples of density-dependent selection pressures.
Floods
Predators
Temperature
Food
35
Adaptations acquired during the lifetime of an organism can always be inherited by offspring.
True
False
