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Test your basic knowledge |
CLEP Biology: Principles Of Evolution
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Study First
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. Linnaeus placed all monkeys and apes along with humans into the order _________
Phylum
Baseline
Primates
Interspecific
2. 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.
Chordata
Sexually
Cold
Mass
3. The study of ____________ ____________ supports the claim of a common origin of organisms.
Comparative anatomy.
Increase
Fossil
Phylum
4. 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.
Chance
Polymorphism
Sympatric
Continuity
5. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Balanced
Finches
Dinosaurs
Evolution
6. Homology is also seen in the structure of eye - brain - joint appendages of arthropods - etc. It is thus evidence for ____________.
Cold
Intraspecific
Evolution
Natural selection
7. ___________ is a specific explanation of similarity of form seen in the biological world. In genetics - it is used in reference to protein or DNA sequences - meaning that the given sequences share ancestry.
Species
Extinction
New World
Homology
8. About 2 million years ago - two groups developed: the australopithecines - generally smaller brained and not users of tools; and the line that led to genus _________ - larger brained and makers and users of tools.
Genetic drift
Differential
Homo
Embryos
9. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Continuity
Finches
Mammals.
Fungi
10. About 1.8 million years ago - early Homo gave rise to _______ ________ - the species thought to have been ancestral to our own.
Change
Natural selection
Homo erectus
Interspecific
11. 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.
Mass
Creationism
Intraspecific
Evolution
12. 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.
Neanderthals
Interbreed
Elongation
Natural selection
13. A ____________ tree is a graphical means to depict the evolutionary relationships of a group of organisms.
Finches
Phylogenetic
Macroscopic.
Mollusca
14. ____________ 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.
Protista
Homologous
Environmental
Struggle
15. 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...
Genetic drift
Sympatric
Africa
Finches
16. Such a dual level designation is referred to as a _________ nomenclature.
Interspecific
Protoplasm
Binomial
Fungi
17. The ____________ mammals occupy Australia - and differ from placental mammals because they bear their young inside a pouch (instead of a placenta).
Adaptive radiation
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Homologous
Founder.
18. _____________ struggle takes place between the individuals of the same species.
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Intraspecific
Environmental
Africa
19. 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).
Beneficial
Cold
Natural selection
Fossil
20. A ___________ can be defined as one or more populations of interbreeding organisms that are reproductively isolated in nature from all other organisms.
Species
Interbreed
Primates
Dinosaurs
21. Speciation by ____________ Equilibrium involves a group of creatures which gets isolated from the rest of their species.
Interspecific
Evolved
Punctuated
Africa
22. Homology has to be distinguished from ___________; for instance - the wings of insects and the wings of birds are analogous but not homologous.
Natural selection
Differential
Phylum
Analogy
23. According to Darwin - in spite of the high reproductive potential - the number of individuals in a species remains relatively constant - suggesting _____________ for existence.
Allopatric
Phylogenetic
Struggle
Mutations
24. In general if two genes have an almost identical DNA sequence - it is likely that they are ____________.
Taxonomy
Fossil
Homologous
Sexually
25. Prior to the scientific discoveries of the past 200 years - _____________ from the Book Of Genesis described how living things came into being.
Creationism
Code
Finches
Macroscopic.
26. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Microevolution
Founder.
Sympatric
Fire
27. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Seven
Oxygen
Allopatric
Interbreed
28. 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.
Cold
Code
Kingdom
New World
29. Heritable variations are called _____________ variations. Such variations arising from changes in DNA are passed on within families and to the offspring from the parents.
Embryos
New World
Genetic
Natural selection
30. Most anthropologists agree that the ______ _______ was populated by a series of three migrations over the temporary land connection between Asia and North America.
Change
New World
Africa
Creationism
31. 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).
Balanced
Africa
Seven
Differential
32. 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.
DNA
Homo
Intraspecific
Evolved
33. When Charles Darwin was in the Galapagos islands - one of the first things he noticed is the variety of ___________ that existed on each of the islands.
Polymorphism
Finches
Homo
DNA
34. ______________ struggle is the struggle of organisms against the physical environment.
Environmental
Dinosaurs
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Mollusca
35. 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.
Dinosaurs
Sexually
Increase
Mammals.
36. The ______-____-______ Hypothesis proposes that some Homo erectus remained in Africa and continued to evolve into Homo sapiens - and left Africa about 100 -000-200 -000 years ago. From a single source - Homo sapiens replaced all populations of Homo e
Mammals.
Binomial
Out-of-Africa
Sickle Cell
37. Except for the tail fins - whales greatly resemble fish in outline - but are instead descended from four-legged land ___________.
Evolved
Mammals.
Hardy-Weinberg
Microevolution
38. _____________ struggle takes place between the individuals of different species.
Macroscopic.
Natural selection
Extinction
Interspecific
39. _______________ is that branch of biology dealing with the identification and naming of organisms.
Hunter-gatherer
Adaptive radiation
Fossil
Taxonomy
40. Immediately below kingdom is the _________ level of classification. At this level - animals are grouped together based on similarities in basic body plan or organization.
Finches
Connecting links
Punctuated
Phylum
41. 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.
New World
Adaptive radiation
Homology
Primates
42. All organisms are placed into one of five kingdoms: Monera - Protista - ________ - Plantae - Animalia.
Homology
Balanced
Elongation
Fungi
43. For humans - the complete classification is: Kingdom (Animalia); Phylum (__________); Class (Mammalia); Order (Primates); Family (Hominidae); Genus (Homo); Species (Sapiens).
Balanced
Allopatric
Differential
Chordata
44. 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.
Allele
Mass
Embryos
Mimicry
45. _________ ______ disease causes anemia - joint pain - a swollen spleen - and frequent - severe infections. It illustrates balanced polymorphism because carriers are resistant to malaria - an infection by the parasite that causes cycles of chills and
Sickle Cell
Somatic
Species
Genetic drift
46. Because organisms are continually tested by their changing ______________ - their forms change to suit new conditions.
Environment
Mass
Extinction
Elongation
47. _____________ is the end of a particular evolutionary line - the end of a species - a family - or a larger group of organisms.
Increase
Homologous
Environmental
Extinction
48. There are certain animals with intermediate characters between two major groups of animals. They are called ___________ _____.
Somatic
Hardy-Weinberg
New World
Connecting links
49. __________ are the remains of organisms that lived in the past.
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Sympatric
Punctuated
Allopatric
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.
Intraspecific
Hunter-gatherer
Creationism
Primates