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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.
Evolved
Protoplasm
Environment
Fire
2. Such a dual level designation is referred to as a _________ nomenclature.
Continuity
Triassic
Binomial
Kingdom
3. Because organisms are continually tested by their changing ______________ - their forms change to suit new conditions.
Embryos
Mammals.
Cold
Environment
4. _______________ is that branch of biology dealing with the identification and naming of organisms.
Taxonomy
Protoplasm
Out-of-Africa
Punctuated
5. Darwin's Finches illustrated ___________ ____________. This is where species all deriving from a common ancestor have over time successfully adapted to their environment via natural selection.
Code
Out-of-Africa
Adaptive radiation
DNA
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.
Intraspecific
Triassic
Function
Somatic
7. Darwin reported that all organisms tend to _____________ in a geometric ratio provided there are no environmental checks. Even slow breeding animals like the elephant may theoretically give rise to 19 million descendants in a period of 750 years.
Increase
Mammals.
Continuity
Connecting links
8. Prior to the scientific discoveries of the past 200 years - _____________ from the Book Of Genesis described how living things came into being.
Hunter-gatherer
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Creationism
33 phyla
9. 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
Chordata
Mammals.
Natural selection
Connecting links
10. Homology is also seen in the structure of eye - brain - joint appendages of arthropods - etc. It is thus evidence for ____________.
Africa
Evolution
Increase
Mutations
11. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Environmental
Genus
Microevolution
Seven
12. According to Darwin - in spite of the high reproductive potential - the number of individuals in a species remains relatively constant - suggesting _____________ for existence.
Struggle
Dinosaurs
Interspecific
Genus
13. The _______-_________ Law states that an equilibrium of allele frequencies in a gene pool remains in effect in each succeeding generation of a sexually reproducing population if five conditions are met.
Kingdom
Neanderthals
Genetic drift
Hardy-Weinberg
14. An allele may increase - or decrease - in frequency simply through ___________. Not every member of the population will become a parent and not every set of parents will produce the same number of offspring.
Genetic
Analogy
Genus
Chance
15. _____________ 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.
Mutations
Intraspecific
Homo erectus
Bipedal
16. ______________ struggle is the struggle of organisms against the physical environment.
Bipedal
Intraspecific
Environmental
Finches
17. Humans who have produced offspring that successfully live in a ________ environment tend to be broader and smaller in stature while hotter environments are occupied by thinner taller humans.
Chordata
Fossil
Chance
Cold
18. ___________ evolution is an evolutionary process in which organisms not closely related independently acquire some characteristic or characteristics in common.
Convergent
Bipedal
Mutations
Macroscopic.
19. 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
Hardy-Weinberg
Chordata
Extinction
20. About 1.8 million years ago - early Homo gave rise to _______ ________ - the species thought to have been ancestral to our own.
Change
Creationism
Mutations
Homo erectus
21. _____________ is the accumulation of small changes in a gene pool over a relatively short period.
Genetic
Increase
Microevolution
Biodiversity
22. 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.
Kingdom
Sexually
Allopatric
Analogy
23. ___________ speciation happens when members of a population develop some genetic difference that prevents them from reproducing with the parent type.
Genetic
Sympatric
Interbreed
Creationism
24. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Chordata
Fire
Oxygen
Out-of-Africa
25. The early stages of development of the ___________ of fish - salamander - tortoise - hen and man show remarkable similarity.
Embryos
Phylum
Environment
Increase
26. Extinctions - mostly at the level of species - have been occurring constantly at a low 'background rate' - usually matched by the rate at which new species appear - with the result that ____________ is constantly increasing.
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Biodiversity
Environmental
Neanderthals
27. There are certain animals with intermediate characters between two major groups of animals. They are called ___________ _____.
Connecting links
Function
Evolution
Sickle Cell
28. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Oxygen
Interspecific
Balanced
Founder.
29. If a population began with a few individuals - one or more of whom carried a particular allele - that allele may come to be represented in many of the descendants. This is known as ____________.
Continuity
Evolved
Polymorphism
Function
30. Differential reproduction allows one species to gradually evolve into a new species. This is the process of ____________.
Punctuated
Evolution
Taxonomy
Finches
31. In a genetic drift the entire population may become homozygous for the allele or - equally likely - the allele may disappear. Before either of these fates occurs - the allele represents a Polymorphism. This is a case of polymorphism through...
New World
Homologous
Triassic
Genetic drift
32. Biodiversity crashes during ________ extinctions. This has been a powerful force in evolution - wiping the slate clean of up to 96% of all species - and providing the survivors with a world full of opportunities into which they can diversify.
Fungi
Mutations
33 phyla
Mass
33. _____________ struggle takes place between the individuals of different species.
Microevolution
Phylum
Interspecific
Biodiversity
34. Members of the phylum _____________ have soft - unsegmented bodies that are usually - but not always - enclosed in hard shells.
Genus
Creationism
Convergent
Mollusca
35. 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.
Adaptive radiation
Phylogenetic
Chance
Neanderthals
36. _____________ is the end of a particular evolutionary line - the end of a species - a family - or a larger group of organisms.
Extinction
Punctuated
Monera
Sickle Cell
37. The only kingdom which consists of prokaryotes is the __________ kingdom.
Evolution
Protista
Seven
Monera
38. The Linnaean system uses two Latin name categories - ________ and species - to designate each type of organism.
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Homologous
Allopatric
Genus
39. ____________ 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.
Function
Homologous
Sickle Cell
Continuity
40. For humans - the complete classification is: Kingdom (Animalia); Phylum (__________); Class (Mammalia); Order (Primates); Family (Hominidae); Genus (Homo); Species (Sapiens).
Primates
Chordata
Evolution
Fire
41. Immediately below kingdom is the _________ level of classification. At this level - animals are grouped together based on similarities in basic body plan or organization.
Homology
Phylum
Evolution
Neanderthals
42. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Intraspecific
Finches
Continuity
Phylogenetic
43. A ___________ can be defined as one or more populations of interbreeding organisms that are reproductively isolated in nature from all other organisms.
Species
Homo erectus
Creationism
Sexually
44. Heritable variations are called _____________ variations. Such variations arising from changes in DNA are passed on within families and to the offspring from the parents.
Genetic
Sickle Cell
Increase
Natural selection
45. __________ are the remains of organisms that lived in the past.
Mollusca
Homology
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Beneficial
46. The ____________ mammals occupy Australia - and differ from placental mammals because they bear their young inside a pouch (instead of a placenta).
Mammals.
Homo
Natural selection
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
47. A Hardy-Weinberg equilibrium provides a ___________ by which to judge whether evolution has occurred.
Baseline
Evolution
Sympatric
Hunter-gatherer
48. Populations begin to diverge when gene flow between them is restricted. Geographic isolation is often the first step in ____________ speciation.
Kingdom
Comparative anatomy.
Hunter-gatherer
Allopatric
49. The Neolithic transition - about 10 -000 years ago - involved the change from __________-__________ societies to agricultural ones based on cultivation of plants and domesticated animals.
Evolved
Analogy
Hunter-gatherer
Allele
50. The __________ kingdom consists of one-celled organisms as well - but differs from the Monera kingdom in that it consists of eukaryotes.
Triassic
Extinction
Hunter-gatherer
Protista