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Test your basic knowledge |
CLEP Biology: Principles Of Evolution
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Subjects
:
clep
,
science
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A comparative study of physiology and biochemistry also supports the common origin for different organisms. The _____________ of all organisms cells is more or less same in composition.
Polymorphism
Function
Protoplasm
Balanced
2. The study of ____________ ____________ supports the claim of a common origin of organisms.
Comparative anatomy.
Protoplasm
Genetic
Natural selection
3. For humans - the complete classification is: Kingdom (Animalia); Phylum (__________); Class (Mammalia); Order (Primates); Family (Hominidae); Genus (Homo); Species (Sapiens).
Phylogenetic
Continuity
Evolved
Chordata
4. In general if two genes have an almost identical DNA sequence - it is likely that they are ____________.
Environment
Homologous
DNA
Interbreed
5. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Interspecific
Binomial
Continuity
Cold
6. Homology was defined by Darwin as similarity of structure and position - and distinguished from 'analogy -' which was defined as similarity of _____________ but not necessarily of structure and position.
Function
Out-of-Africa
Microevolution
Homology
7. The early stages of development of the ___________ of fish - salamander - tortoise - hen and man show remarkable similarity.
Embryos
Intraspecific
Taxonomy
Sexually
8. The Linnaean system uses two Latin name categories - ________ and species - to designate each type of organism.
Phylum
Microevolution
Cold
Genus
9. In species which reproduce _____________ - extinction of a species is generally inevitable when there is only one individual of that species left - or only individuals of a single sex.
Change
Sexually
Adaptive radiation
Out-of-Africa
10. Jean Baptiste de Lamarck (1744-1829) developed one of the first theories on how species changed. Lamarck - in 1809 - concluded that organisms of higher complexity had __________ from preexisting - less complex organisms.
Chance
Evolved
Sympatric
Homologous
11. ____________ organs are formed on the same basic plan though they may be modified variously to perform different functions. They must have a common ancestral structure which gave rise to different modifications.
Interbreed
Homologous
Cold
Monera
12. According to Darwin - in spite of the high reproductive potential - the number of individuals in a species remains relatively constant - suggesting _____________ for existence.
Kingdom
Struggle
Adaptive radiation
Embryos
13. ___________ evolution is an evolutionary process in which organisms not closely related independently acquire some characteristic or characteristics in common.
Struggle
Convergent
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Finches
14. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Balanced
Somatic
Africa
Homo
15. The highest category in the Linnaean system of classification is the __________. At this level - organisms are distinguished on the basis of cellular organization and methods of nutrition.
Homologous
Biodiversity
Kingdom
Triassic
16. Insect ____________ is also an example of convergent evolution - as for example when an edible (palatable) butterfly develops a color pattern similar to a relatively unrelated inedible (unpalatable) butterfly - and by so doing escapes being eaten.
Differential
Comparative anatomy.
Interspecific
Mimicry
17. _______________ is that branch of biology dealing with the identification and naming of organisms.
Interbreed
Taxonomy
Allele
Sickle Cell
18. The only kingdom which consists of prokaryotes is the __________ kingdom.
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Neanderthals
Monera
Punctuated
19. A Hardy-Weinberg equilibrium provides a ___________ by which to judge whether evolution has occurred.
Convergent
Baseline
Environment
Sickle Cell
20. _____________ struggle takes place between the individuals of the same species.
Intraspecific
Allele
Polymorphism
Out-of-Africa
21. Linnaeus placed all monkeys and apes along with humans into the order _________
Primates
Sexually
Mollusca
Africa
22. At some time in their life cycle - chordates have a pair of lateral gill slits or pouches used to obtain __________ in a liquid environment.
Bipedal
Oxygen
Analogy
Code
23. At the molecular level - life's ability to reproduce begins with the replication of ____________ - during which two new spirals are created that are exact replicas of the original molecule.
Kingdom
Interbreed
DNA
Evolution
24. Organisms struggle for existence. Organisms with advantageous characters survive - while those which lack such variations perish. The advantageous characters are passed on to the offsprings generation after generation and the organisms become better
Allele
Extinction
Natural selection
Genetic
25. Primates evolved about approximately 30 million years ago in ___________. One branch of primates evolved into the Old and New World Monkeys - the other into the hominoids (the line of descent common to both apes and man).
Africa
Species
Mutations
Homologous
26. _____________ is the end of a particular evolutionary line - the end of a species - a family - or a larger group of organisms.
Extinction
Struggle
Sickle Cell
Elongation
27. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Function
Hardy-Weinberg
Microevolution
Fire
28. _________ evidence shows that the horse has undergone considerable evolutionary change over a period of 60 million years.
Seven
New World
Fossil
Binomial
29. __________ are the remains of organisms that lived in the past.
Phylogenetic
Evolved
Mollusca
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
30. Almost all living organisms use the same basic biochemical molecules - including DNA - ATP - and many identical or nearly identical enzymes. Organisms utilize the same DNA triplet base _________ and the same 20 amino acids in their proteins
Code
Fungi
DNA
Finches
31. Speciation by ____________ Equilibrium involves a group of creatures which gets isolated from the rest of their species.
Balanced
Intraspecific
Chordata
Punctuated
32. There are certain animals with intermediate characters between two major groups of animals. They are called ___________ _____.
Connecting links
Punctuated
Africa
Adaptive radiation
33. Despite their image as brutish simpletons - _____________were the first humans to bury their dead with artifacts - indicating abstract thought - perhaps a belief in an after-life.
Allele
Mass
Change
Neanderthals
34. A ____________ tree is a graphical means to depict the evolutionary relationships of a group of organisms.
Somatic
Oxygen
Fungi
Phylogenetic
35. The mutation may be harmful (resulting in a reduced probability of survival for the organism involved) - ____________ (it might also do its intended job better) or merely neutral (no effect at all).
Primates
Embryos
Beneficial
Analogy
36. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Extinction
Increase
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Seven
37. As the finch population began to flourish in these advantageous conditions - ______________ competition became a factor - and resources on the islands were squeezed and could not sustain the population of the finches for long.
Mimicry
Triassic
Intraspecific
Mammals.
38. There are at least ___________ of animals. Humans are members of the phylum Chordata.
33 phyla
Kingdom
Chance
Continuity
39. Animals and plants show variations in physical structure. Some of these variations are simply caused by external conditions (environmental) - such as accidents - temperature - food abundance - etc.. ___________ variations have no effect on evolution
Hunter-gatherer
Hardy-Weinberg
Adaptive radiation
Somatic
40. The ____________ mammals occupy Australia - and differ from placental mammals because they bear their young inside a pouch (instead of a placenta).
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Fungi
Differential
Embryos
41. _____________ is the accumulation of small changes in a gene pool over a relatively short period.
Continuity
Microevolution
Dinosaurs
Cold
42. As populations diverge - they form similar but related species. When are two populations new species? When populations no longer _____________ they are thought to be separate species.
Seven
Mutations
Interbreed
Taxonomy
43. _____________ can occur randomly - from radiation damage (impact with high energy g-rays or cosmic rays) - from exposure to chemical agents called mutagens - or simply by error in the DNA replication process.
Balanced
Biodiversity
Mutations
Protoplasm
44. Immediately below kingdom is the _________ level of classification. At this level - animals are grouped together based on similarities in basic body plan or organization.
Bipedal
Connecting links
Phylum
Homology
45. Differential reproduction allows one species to gradually evolve into a new species. This is the process of ____________.
Macroscopic.
Evolution
Finches
Increase
46. Mammals developed from primitive mammal-like reptiles during the __________ Period - some 200-245 million years ago.
Homologous
Triassic
Out-of-Africa
Function
47. Any change of _________ frequencies in a gene pool indicates that evolution has occurred. The Hardy-Weinberg law proposes that those factors that violate the conditions listed - cause evolution.
Chance
Punctuated
Allele
Sickle Cell
48. ____________ reproduction - whether reproduction proceeds with lesser or greater success - is central to the process of natural selection; it determines whether a given mutation becomes established in the general population.
Chance
Differential
Species
Genetic drift
49. Except for the tail fins - whales greatly resemble fish in outline - but are instead descended from four-legged land ___________.
Sexually
Homologous
Phylum
Mammals.
50. The Neolithic transition - about 10 -000 years ago - involved the change from __________-__________ societies to agricultural ones based on cultivation of plants and domesticated animals.
Hunter-gatherer
Natural selection
Genus
Biodiversity