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Living Environment Topic #5- Evolution Flashcards | StudBud
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Living Environment Topic #5- Evolution
Living Environment Topic #5- Evolution
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Evolution
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Answers
1
How does natural selection operate to cause change in a population?
all members of the population adapt to environmental changes
the members of the population differ so that only some members survive
the members of the population are equally able to survive
the members of the population cause environmental changes and adapt to them
2
Define Overproduction
more offspring are produced than can survive
glow in the dark cat
a change over a long period of time
GMO
3
Which mutation could be passed onto future generations?
a gene change in a liver cell
a chromosomal change during gamete formation
cancer caused nu excessive exposure to the sun
random breakage of a chromosome in a leaf cell of a maple tree
4
The fact that healthy deer can outrun a timber wolf is an example of
natural selection
non-random mating
isolation
mutation
5
What are animal adaptations?
a way for animals to get along
traits that improve an animal's chance of survival
common characteristics of an animal
a system used to classify animals
6
Natural selection is based on the observation that:
More offspring are born than survive
Individuals vary for inherited traits
Life is a struggle to acquire limited resources
All of the options are correct
7
The process by which a species passes out of existence is known as
endangerment
extinction
deforestation
adaptation
8
What three factors affect Natural Selection?
People, Places, Things
Competition, Overproduction, Peduncle
Competition, Variation, Manipulation
Competition, Overproduction, Variation
9
Which two factors provide the genetic basis for variation within many species?
competition and synthesis of proteins
mutations and sexual reproduction
asexual reproduction and meiosis
ecological succession and mitosis
10
Which factor has been chief cause of extinction of various species?
failure to adapt to environment
warfare within the species
volcanic eruptions
people's interference with nature
11
Q: What would be at the bottom of an evolutionary tree?
A common ancestor
An animal
An omnivore
A human
12
artificial selection
Elimination of species from Earth
Trace of an organism from the past
Process by which humans modify a species by breeding it for certain traits.
study of fossils or extinct organisms
13
How did the evolution of the long neck giraffe come to be?
long necks survived because they were better suited to their environment
long necks only mated with short necks
Giraffes changed because they knew they had to
14
Natural selection increases the frequency of:
Random mutations within a species
Characteristics that make individuals better adapted
Change within a species
Characteristics that make individuals less well adapted
15
A change in the genetic material that produces variation may be the result of
the overproduction of a species
a mutation
competition
the struggle for survival
16
What is antibiotic resistance?
An antibiotic
I don't know
A bacteria that reproduces
Bacteria becoming immune to antibiotics
17
A trait with low survival value to the members of a population will most likely
remain unchanged in frequency through many generations
decrease in frequency from one generation to the next
undergo a series of mutations in succeeding generatons
cause the reproductive rate of the individual to increase
18
Darwin is the father of genetics
False
True
19
Which event best indicates that evolution is still taking place?
fossil discoveries
volcanic activity
melting of the polar icecaps
mutations in fruit flies
20
The biological concept that is most closely associated with the changes in the peppered moth population is known as
positive feedback
natural selection
asexual reproduction
homeostatic control
21
Adaptations...
Occur over long periods of time
Don't really help
Occur quickly
Can never change
22
Identify 2 sources of genetic variation
mutation, meiosis
mitosis, cloning
sexual reproduction, cloning
recombination, asexual reproduction
23
Evolved resistance to a pesticide is an example of
nonadaptive process
bottleneck effect
artificial selection
natural selection
24
The greatest genetic variation would be found in offspring that resulted from
mitosis
regeneration
binary fission
fertilization
25
Which is the definition of evolution?
genetic differences in a species
the change of species over time
parents passing traits to offspring
the appearance of new life forms
26
The development of antibiotic resistance in bacteria is an example of
sexual selection
natural selection
Mitosis
artifical selection
27
Natural Selection is random.
False
True
28
In most populations, the individuals that produce the greatest number of offspring are
those that have only inheritable traits
those that are the most intelligent
usually the best adapted
always the strongest
29
The presence of some similar structures in all vertebrates suggests that these vertebrates
all develop at the same rate
evolved from different animals that appeared the same time
may have an evolutionary relationship
develop internally and rely on nutrients from the mother
30
Define competition
Where two organisms struggle for a resource in limited supply
The physical contest between two organisms over a resource
Where two organisms struggle for a resource in supply
31
What does an evolutionary tree show?
The life of an animal
Organisms in a specific habitat
How organisms are related
Why organisms decay
32
Which factor is least likely to contribute to an increase in the rate of evolution?
presence of genetic variations in a population
a long period of environmental stability
chromosomal recombinations
environmental selection of organisms best adapted to survive
33
A maple tree releases hundreds of seeds in a single season. This is an example of
overproduction
a mutation
isolation
non-random mating
34
what is natural selection based on?
adaptability
survivability
all of the above
passing on the mutation too off spring
35
Why are mutations important to natural selection?
It causes cancer, killing an entire population- extinction.
It causes individuals to change.
It lets an organism change its DNA to be more adaptive.
It gives nature different variations/traits to pick from.
36
The DNA found in 2 different species are 95% the same. This suggests that these species
have the same number of mutations
may have similar evolutionary histories
are evolving into the same species
contain identical proteins
37
Evolution is the process of
change in energy flow in food webs
embryonic development of modern humans
development of one-celled organisms from mammals
change in species over long periods of time
38
The process of natural selection is based on the assumption that
Most changes from generations results from mutations
Traits inherited by offspring have different survival rate
Environmental changes cause changes in body structure
Part of the of the population always remains stable
39
Pesticide resistance happens when....
Humans develope disease from bug bites
When we spray plants and they no longer die
When bugs develope diseases
When bugs no longer are killed by a pesticide
40
To the species involved, the main advantage of sexual reproduction is that it
involves two organisms
leads to new DNA combinations
keeps the DNA constant
protects the embryo
41
Natural selection increases the frequency of:
Change within a species
Characteristics that make individuals less well adapted
Characteristics that make individuals better adapted
Random mutations within a species
42
The theory of natural selection is:
A mechanism for evolution proposed by Charles Darwin
Evidence for evolution identified by Jean-Baptiste Lamark
Evidence for evolution identified by Charles Darwin
A mechanism for evolution proposed by Jean-Baptiste Lamark
43
In order for a new species to develop,there must be a change in the
rate of succession in the environement
genetic makeup of a population
migration patterns within a population
temperature of the environment
44
A change in the genetic material that produces variation in a species may be the result of
competition
the overproduction of a species
a mutation
the struggle for survival
45
Which statement is not part of the concept of natural selection?
more individuals are produced than will survive
most favorable traits have the best chance to be reproduced
genes of a individual adapt to a changing environment
variation occurs among individuals in a population
