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. 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
Struggle
Dinosaurs
Function
2. 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.
Evolution
Kingdom
Chance
Change
3. 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.
Kingdom
Primates
Dinosaurs
Adaptive radiation
4. 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.
Protoplasm
Homology
Phylogenetic
Monera
5. 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
Phylogenetic
Intraspecific
Fungi
Code
6. 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
Extinction
Environment
Triassic
7. 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.
Seven
Finches
Evolution
Protista
8. ___________ 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.
Bipedal
Homology
Binomial
Change
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.
Sexually
Macroscopic.
Allele
Increase
10. Heritable variations are called _____________ variations. Such variations arising from changes in DNA are passed on within families and to the offspring from the parents.
Genus
Phylogenetic
Genetic
Evolved
11. _____________ is the accumulation of small changes in a gene pool over a relatively short period.
Intraspecific
Analogy
33 phyla
Microevolution
12. Almost all _________ organisms are either plants or animals.
Mammals.
Macroscopic.
Genetic drift
Polymorphism
13. 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
Sexually
Out-of-Africa
Evolved
14. _________ evidence shows that the horse has undergone considerable evolutionary change over a period of 60 million years.
Africa
Hunter-gatherer
Cold
Fossil
15. The Linnaean system uses two Latin name categories - ________ and species - to designate each type of organism.
Code
Genus
Hunter-gatherer
Intraspecific
16. The __________ kingdom consists of one-celled organisms as well - but differs from the Monera kingdom in that it consists of eukaryotes.
Protista
Taxonomy
Punctuated
Evolution
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.
Dinosaurs
Baseline
Mollusca
Increase
18. Linnaeus placed all monkeys and apes along with humans into the order _________
Primates
Embryos
Fungi
Extinction
19. 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.
Homologous
Out-of-Africa
Evolved
Allele
20. The early stages of development of the ___________ of fish - salamander - tortoise - hen and man show remarkable similarity.
Oxygen
Intraspecific
Embryos
New World
21. There are certain animals with intermediate characters between two major groups of animals. They are called ___________ _____.
Mollusca
Fossil
Connecting links
Embryos
22. Some important structural changes during the evolution of horse are: Increase in size from 11' (Eohippus) to about 60' (Equus) - and ___________ of the head and neck so as that it can reach the ground.
Polymorphism
Punctuated
DNA
Elongation
23. All organisms are placed into one of five kingdoms: Monera - Protista - ________ - Plantae - Animalia.
Fungi
Beneficial
Biodiversity
Primates
24. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Fungi
Mollusca
Seven
Intraspecific
25. The only kingdom which consists of prokaryotes is the __________ kingdom.
Neanderthals
Sickle Cell
Comparative anatomy.
Monera
26. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Differential
Struggle
Fire
Homology
27. 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.
Code
Allele
Taxonomy
Mammals.
28. ___________ speciation happens when members of a population develop some genetic difference that prevents them from reproducing with the parent type.
Mutations
Natural selection
Sympatric
Increase
29. Homology has to be distinguished from ___________; for instance - the wings of insects and the wings of birds are analogous but not homologous.
Intraspecific
Evolution
Bipedal
Analogy
30. Such a dual level designation is referred to as a _________ nomenclature.
Sexually
Taxonomy
Mass
Binomial
31. At some time in their life cycle - chordates have a pair of lateral gill slits or pouches used to obtain __________ in a liquid environment.
Fossil
Homologous
Homo erectus
Oxygen
32. Speciation by ____________ Equilibrium involves a group of creatures which gets isolated from the rest of their species.
Punctuated
Adaptive radiation
Convergent
Sexually
33. _____________ struggle takes place between the individuals of different species.
Baseline
Fire
Environmental
Interspecific
34. Differential reproduction allows one species to gradually evolve into a new species. This is the process of ____________.
Mollusca
Polymorphism
Homologous
Evolution
35. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Continuity
Homologous
Fungi
Embryos
36. Except for the tail fins - whales greatly resemble fish in outline - but are instead descended from four-legged land ___________.
Environmental
Mammals.
Interbreed
Embryos
37. Mammals developed from primitive mammal-like reptiles during the __________ Period - some 200-245 million years ago.
Function
Triassic
Genetic
Out-of-Africa
38. 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
Founder.
Oxygen
Intraspecific
Mollusca
39. Because organisms are continually tested by their changing ______________ - their forms change to suit new conditions.
Mass
Struggle
Fire
Environment
40. There are at least ___________ of animals. Humans are members of the phylum Chordata.
Natural selection
Cold
33 phyla
Phylum
41. ____________ 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.
Microevolution
Genus
Differential
New World
42. 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
Sympatric
Genetic
Finches
43. The Neolithic transition - about 10 -000 years ago - involved the change from __________-__________ societies to agricultural ones based on cultivation of plants and domesticated animals.
Bipedal
Interspecific
Hunter-gatherer
Mutations
44. ____________ 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.
Somatic
Balanced
Homologous
Species
45. According to Darwin - in spite of the high reproductive potential - the number of individuals in a species remains relatively constant - suggesting _____________ for existence.
Fire
Struggle
Binomial
Mutations
46. 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...
Balanced
Genetic drift
Macroscopic.
Mimicry
47. ___________ evolution is an evolutionary process in which organisms not closely related independently acquire some characteristic or characteristics in common.
Cold
Convergent
Mammals.
Mollusca
48. 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
Genetic drift
Homo
Evolved
49. 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.
Out-of-Africa
Mimicry
Sexually
Continuity
50. _______________ is that branch of biology dealing with the identification and naming of organisms.
Taxonomy
Genus
Intraspecific
Fungi