SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
CLEP Biology: Principles Of Evolution
Start Test
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. _________ evidence shows that the horse has undergone considerable evolutionary change over a period of 60 million years.
Mammals.
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Fossil
Elongation
2. __________ are the remains of organisms that lived in the past.
Connecting links
Genetic
Change
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
3. At some time in their life cycle - chordates have a pair of lateral gill slits or pouches used to obtain __________ in a liquid environment.
Species
Oxygen
Adaptive radiation
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
4. _____________ struggle takes place between the individuals of the same species.
Fire
Binomial
33 phyla
Intraspecific
5. A Hardy-Weinberg equilibrium provides a ___________ by which to judge whether evolution has occurred.
Sexually
Baseline
Intraspecific
Beneficial
6. 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
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Chordata
Homo
7. 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.
Mimicry
Fungi
Balanced
Baseline
8. 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
Hunter-gatherer
Homologous
Out-of-Africa
Primates
9. 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
Neanderthals
Change
Natural selection
10. 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
Primates
Sickle Cell
Protoplasm
11. The Linnaean system uses two Latin name categories - ________ and species - to designate each type of organism.
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Connecting links
Embryos
Genus
12. 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.
Allopatric
Homo
Hardy-Weinberg
Creationism
13. 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.
Phylogenetic
Evolved
Mass
Protoplasm
14. 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.
Natural selection
Punctuated
Neanderthals
Fungi
15. 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
Chordata
Fire
Phylum
16. 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.
Primates
Homo
Neanderthals
Interspecific
17. The __________ kingdom consists of one-celled organisms as well - but differs from the Monera kingdom in that it consists of eukaryotes.
Taxonomy
Mass
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Protista
18. ______________ struggle is the struggle of organisms against the physical environment.
Hunter-gatherer
Intraspecific
Natural selection
Environmental
19. ____________ 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.
Interspecific
Homologous
Bipedal
Interbreed
20. ___________ speciation happens when members of a population develop some genetic difference that prevents them from reproducing with the parent type.
Creationism
Sympatric
Hardy-Weinberg
Embryos
21. 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.
Chance
Kingdom
Creationism
Natural selection
22. 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
Seven
Kingdom
Neanderthals
23. In the 1680s Ariaantje and Gerrit Jansz emigrated from Holland to South Africa - one of them bringing along an allele for the mild metabolic disease porphyria. Today more than 30000 South Africans carry this allele and - in every case examined - can
Natural selection
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Mimicry
Founder.
24. Differential reproduction allows one species to gradually evolve into a new species. This is the process of ____________.
Evolution
Bipedal
Mimicry
Cold
25. 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.
Mollusca
Neanderthals
Protoplasm
Cold
26. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Sympatric
Fossil
Natural selection
Seven
27. There are at least ___________ of animals. Humans are members of the phylum Chordata.
Intraspecific
Binomial
33 phyla
Primates
28. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Analogy
Phylum
Genetic
Continuity
29. 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.
Interbreed
Extinction
Intraspecific
Sickle Cell
30. Almost all _________ organisms are either plants or animals.
Macroscopic.
Hunter-gatherer
Fungi
Code
31. 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.
Change
Function
Mollusca
Genetic
32. Immediately below kingdom is the _________ level of classification. At this level - animals are grouped together based on similarities in basic body plan or organization.
Sexually
Phylum
Function
Punctuated
33. There are certain animals with intermediate characters between two major groups of animals. They are called ___________ _____.
Interbreed
Taxonomy
Connecting links
Homologous
34. ___________ 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.
Finches
Taxonomy
Homology
Somatic
35. 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.
Mass
Finches
Increase
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
36. ___________ evolution is an evolutionary process in which organisms not closely related independently acquire some characteristic or characteristics in common.
Natural selection
Baseline
Convergent
Elongation
37. 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.
Interbreed
Evolution
Hardy-Weinberg
Oxygen
38. All organisms are placed into one of five kingdoms: Monera - Protista - ________ - Plantae - Animalia.
Elongation
Fungi
Protoplasm
Sexually
39. 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.
Increase
Binomial
Chance
Out-of-Africa
40. In general if two genes have an almost identical DNA sequence - it is likely that they are ____________.
Homologous
Species
Allele
Mollusca
41. Homology is also seen in the structure of eye - brain - joint appendages of arthropods - etc. It is thus evidence for ____________.
Africa
Function
Evolution
Chance
42. For humans - the complete classification is: Kingdom (Animalia); Phylum (__________); Class (Mammalia); Order (Primates); Family (Hominidae); Genus (Homo); Species (Sapiens).
Mimicry
Chordata
Mass
Struggle
43. The early stages of development of the ___________ of fish - salamander - tortoise - hen and man show remarkable similarity.
Beneficial
Punctuated
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Embryos
44. 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
Natural selection
Allopatric
Neanderthals
Finches
45. _______________ is that branch of biology dealing with the identification and naming of organisms.
Taxonomy
Genetic drift
Fossil
Genus
46. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Primates
New World
Homologous
Fire
47. Such a dual level designation is referred to as a _________ nomenclature.
Environmental
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Binomial
Sympatric
48. Members of the phylum _____________ have soft - unsegmented bodies that are usually - but not always - enclosed in hard shells.
Mollusca
Sickle Cell
Fire
Continuity
49. 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.
Bipedal
Balanced
Environment
Adaptive radiation
50. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Natural selection
Balanced
Continuity
Homo erectus