Final Flashcards

(40 cards)

1
Q

A well-tested explanation that unifies a broad range of observations is …

A

A theory

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2
Q

The process by which individuals that are better suited to their environment survive and reproduce successfully is called …

A

evolution

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3
Q

A structure or organ that (usually) serves no useful function in an organism, is called a(n) …

A

vestigial organ

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4
Q

Competition among members of a species for food, living space, and other necessities of life, is called …

A

struggle for existence

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5
Q

Structures that have different mature forms in different organisms but develop from the same embryonic tissues, are called …

A

homologous structures

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6
Q

Structures of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestor, are called

A

analogous structures

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7
Q

An inherited characteristic that increases an organism’s chance of survival, is called a(n) …

A

adaptation

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8
Q

When humans select certain traits for breeding purposes from the natural variation among different organisms, this is called …

A

artificial selection

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9
Q

The principle that all living things were derived from common ancestors, is called …

A

Common descent

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10
Q

The process by which modern organisms descended from ancient organisms (change over time), is called …

A

Evolution

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11
Q

This person wrote Principles of Geology and explained how Earth could change over time and that Earth was extremely old.

A

Charles Lyell

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12
Q

This person thought that organism acquired traits by using their bodies in new ways (use versus disuse, tendency towards perfection, inheritance of acquired traits).

A

Jean Baptiste Lamarck

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13
Q

This person wrote On the Origin of Species, sailed on the HMS Beagle to the Galapagos Islands, and developed the central idea of evolution by natural selection (struggle for existence, natural selection / survival of the fittest)

A

Charles Darwin

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14
Q

Which of the following is NOT evidence of evolution?

A

Analogous structure

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15
Q

True or false? The preserved remains or evidence of an ancient organism, is called a fossil.

A

True

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16
Q

The ability of an organism to survive and reproduce in its environment, is called ..

A

Fitness

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17
Q

Which type of adaptation does the male Peacock display when it does its courtship dance?

18
Q

Which type of adaptation are the ears of the Desert Fox an example of?

19
Q

Determining the age of fossils based on how close they are to the surface of the Earth, is ..

A

Relative dating

20
Q

True or false? Biochemical evidence compares the DNA of different organisms to see how closely related they are.

21
Q

The combined genetic information of all members of a particular population forms a …

22
Q

Traits that are controlled by more than one gene, such as human height or eye colour, are known as …

A

polygenic traits

23
Q

The type selection in which individuals of average size have greater fitness than small or large individuals is called …

A

stabilizing selection

24
Q

The type of selection in which individuals at one end of a curve have the highest fitness is called

A

directional selection

25
A random change in allele frequencies that occurs in small populations is known as ...
genetic drift
26
A change in allele frequency that results from the migration of a small subgroup of a population is called ...
the founder effect
27
The evolution of Darwin's finches is an example of ...
speciation
28
Fill in the blank. A primate called the aye-aye is found only on the island of Madagascar. It's ________________ is actually very similar to a woodpecker's because this primate uses it's long middle finger to tap on trees and listen for larvae underneath. It then uses that middle finger to dig out the larvae and consumes them. It is active at night and is arboreal. The fossa, birds of prey, and snakes may eat aye-ayes.
niche
29
The Kaibab squirrel is a subspecies of the Abert's squirrel that formed when a small population became isolated on the north rim of the Grand Canyon. Which type of isolation is this an example of?
geographic isolation
30
Male fireflies use specific light patterns to attract females. Various species display their lights differently; if a male of one species tried to attract the female of another, she would not recognize the light pattern and would not mate with the male. Which type of isolation is this an example of?
behavioural isolation
31
Of the seven recognized species in genus Magicicada, three follow a 17-year mating cycle, while four follow a 13-year cycle. While species with a 17-year cycle emerge every 17 years to breed, species with a 13-year cycle emerge every 13 years. In regions where their geographic range overlaps, their emergence coincides once in every 221 years. Which type of isolation is this an example of?
temporal isolation
32
The number of times an allele occurs in a gene pool compared with the number of times other alleles occur, is called ...
relative frequency
33
Of the seven recognized species in genus Magicicada, three follow a 17-year mating cycle, while four follow a 13-year cycle. While species with a 17-year cycle emerge every 17 years to breed, species with a 13-year cycle emerge every 13 years. In regions where their geographic range overlaps, their emergence coincides once in every 221 years. Which type of isolation is this an example of?
temporal isolation
34
When allele frequencies remain constant, this is called ...
genetic equilibrium
35
There are two species of fruit fly commonly cultured as live food. The smaller of the two is Drosophila melanogaster, often known as “melanos” or “melos” for short. They have nonexistent wings or they have wings, but the wings do not function properly. The other species of fruit fly cultured as a live food is Drosophila hydei. This species is larger and has large, clearly visible wings which are not functional. Because this species of fly is larger, it is a great food for somewhat bigger fish, frogs, geckos, and so on. Both fruit fly types are bred because they have changes in their DNA sequences that affects genetic information. What event or occurrence are humans taking advantage of when they breed these flies?
mutations
36
The process by which unrelated organisms independently evolve similarities when adapting to similar environments, is called ...
convergent evolution
37
Darwin's finches are an example of which type of evolution?
divergent evolution
38
Allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change. This is known as the ....
Hardy-Weinberg Principle
39
Which of the following conditions is NOT required to maintain genetic equilibrium from generation to generation?
There must be random variation
40
If each individual of a population has an equal chance of passing on its alleles to offspring, this is called ...
random mating