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. 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.
Mutations
Evolved
Interbreed
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
2. The only kingdom which consists of prokaryotes is the __________ kingdom.
Seven
Monera
Cold
Sympatric
3. Members of the phylum _____________ have soft - unsegmented bodies that are usually - but not always - enclosed in hard shells.
Mollusca
Natural selection
Oxygen
Polymorphism
4. _____________ is the accumulation of small changes in a gene pool over a relatively short period.
Chordata
Intraspecific
Taxonomy
Microevolution
5. ______________ struggle is the struggle of organisms against the physical environment.
Homology
Intraspecific
Environmental
Allopatric
6. An important step toward the modern theory of evolution came in the 1760's - when Count George-Louis Leclerc de Buffon (1707-1788) published his Natural History of Animals with the idea that species __________ over time.
Embryos
Chordata
Change
Intraspecific
7. _____________ struggle takes place between the individuals of different species.
Species
Punctuated
Hardy-Weinberg
Interspecific
8. 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
Punctuated
Fossil
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
9. About 1.8 million years ago - early Homo gave rise to _______ ________ - the species thought to have been ancestral to our own.
Homo erectus
Bipedal
Balanced
Protoplasm
10. _____________ 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
Natural selection
Natural selection
Change
11. 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
Homo
Founder.
Out-of-Africa
Phylogenetic
12. Prior to the scientific discoveries of the past 200 years - _____________ from the Book Of Genesis described how living things came into being.
Code
Extinction
Environmental
Creationism
13. 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
Sickle Cell
Somatic
Phylum
DNA
14. 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.
Phylogenetic
Fire
Bipedal
Finches
15. 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
Analogy
Binomial
Founder.
Intraspecific
16. _________ ______ 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
Genetic
Sickle Cell
Phylogenetic
Triassic
17. 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.
Mammals.
Increase
Evolution
Environmental
18. A ____________ tree is a graphical means to depict the evolutionary relationships of a group of organisms.
Genetic drift
Phylogenetic
Baseline
DNA
19. 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.
Homologous
Fungi
Extinction
Mimicry
20. All organisms are placed into one of five kingdoms: Monera - Protista - ________ - Plantae - Animalia.
Fire
Sickle Cell
Fungi
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
21. ___________ 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.
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Differential
Homology
Protoplasm
22. 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.
Primates
Mass
Genetic
Change
23. 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.
Hardy-Weinberg
Evolution
Mass
Elongation
24. Almost all _________ organisms are either plants or animals.
Fungi
Baseline
Macroscopic.
Adaptive radiation
25. 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.
Dinosaurs
DNA
Kingdom
Analogy
26. The study of ____________ ____________ supports the claim of a common origin of organisms.
Taxonomy
Comparative anatomy.
Embryos
Evolved
27. ____________ 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.
Primates
Struggle
Homologous
Hardy-Weinberg
28. According to Darwin - in spite of the high reproductive potential - the number of individuals in a species remains relatively constant - suggesting _____________ for existence.
Cold
Struggle
Protista
Evolution
29. The Neolithic transition - about 10 -000 years ago - involved the change from __________-__________ societies to agricultural ones based on cultivation of plants and domesticated animals.
Comparative anatomy.
Hunter-gatherer
Fire
Evolution
30. 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.
Interspecific
Evolution
Intraspecific
Biodiversity
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.
Continuity
Primates
Function
Homologous
32. 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.
Polymorphism
Sexually
Homologous
Function
33. Populations begin to diverge when gene flow between them is restricted. Geographic isolation is often the first step in ____________ speciation.
Allopatric
Evolution
Intraspecific
Mimicry
34. 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.
Allele
Species
DNA
Elongation
35. __________ are the remains of organisms that lived in the past.
Mammals.
Mimicry
Hunter-gatherer
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
36. Speciation by ____________ Equilibrium involves a group of creatures which gets isolated from the rest of their species.
Punctuated
Continuity
Analogy
Protista
37. Such a dual level designation is referred to as a _________ nomenclature.
Microevolution
Binomial
Species
Phylum
38. ___________ evolution is an evolutionary process in which organisms not closely related independently acquire some characteristic or characteristics in common.
Convergent
Phylum
Primates
Interbreed
39. In general if two genes have an almost identical DNA sequence - it is likely that they are ____________.
Intraspecific
Mammals.
Sympatric
Homologous
40. 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.
Fossils. A study of the fossil record helps to build a historical sequence of biological evolution of complex organisms from simple ancestors.
Hunter-gatherer
Environment
Cold
41. At some time in their life cycle - chordates have a pair of lateral gill slits or pouches used to obtain __________ in a liquid environment.
Macroscopic.
Homologous
Phylogenetic
Oxygen
42. 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.
Triassic
Primates
Fire
Kingdom
43. _____________ is the end of a particular evolutionary line - the end of a species - a family - or a larger group of organisms.
Africa
Evolution
Extinction
Evolved
44. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Phylum
Taxonomy
Interbreed
Balanced
45. Heritable variations are called _____________ variations. Such variations arising from changes in DNA are passed on within families and to the offspring from the parents.
Interbreed
Function
Differential
Genetic
46. Most anthropologists agree that the ______ _______ was populated by a series of three migrations over the temporary land connection between Asia and North America.
Chance
Sexually
New World
Baseline
47. 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.
Environmental
Africa
Evolution
Protoplasm
48. ___________ speciation happens when members of a population develop some genetic difference that prevents them from reproducing with the parent type.
Seven
Evolution
Out-of-Africa
Sympatric
49. The __________ kingdom consists of one-celled organisms as well - but differs from the Monera kingdom in that it consists of eukaryotes.
Oxygen
Protista
Primates
Mass
50. Homology is also seen in the structure of eye - brain - joint appendages of arthropods - etc. It is thus evidence for ____________.
Natural selection
Evolution
Comparative anatomy.
Out-of-Africa