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. 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.
Macroscopic.
Code
Extinction
Cold
2. Immediately below kingdom is the _________ level of classification. At this level - animals are grouped together based on similarities in basic body plan or organization.
Homo
Somatic
Interbreed
Phylum
3. Most anthropologists agree that the ______ _______ was populated by a series of three migrations over the temporary land connection between Asia and North America.
New World
Biodiversity
Punctuated
Convergent
4. 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 ____________.
Biodiversity
Homologous
Polymorphism
Evolution
5. The Regional ___________ Hypothesis suggests that regional populations of H. erectus evolved into H. sapiens through interbreeding between the various populations.
Hunter-gatherer
Fungi
Somatic
Continuity
6. 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
Mammals.
Macroscopic.
Creationism
7. Linnaeus placed all monkeys and apes along with humans into the order _________
Primates
Dinosaurs
Bipedal
Natural selection
8. Such a dual level designation is referred to as a _________ nomenclature.
Environment
Binomial
Sickle Cell
Phylum
9. The most recent mass extinction - the K-T extinction at the end of the Cretaceous period - is best known for having wiped out the __________ .
Baseline
Homologous
Sickle Cell
Dinosaurs
10. Scientific classification sorts living organisms by _________ levels of classification - kingdom; phylum; class; order; family; genus; and species.
Comparative anatomy.
Seven
Primates
Dinosaurs
11. The Linnaean system uses two Latin name categories - ________ and species - to designate each type of organism.
Environmental
Genus
Evolution
Punctuated
12. In general if two genes have an almost identical DNA sequence - it is likely that they are ____________.
Homologous
Intraspecific
Species
Mimicry
13. A ___________ can be defined as one or more populations of interbreeding organisms that are reproductively isolated in nature from all other organisms.
Natural selection
Environment
Species
Mutations
14. The __________ kingdom consists of one-celled organisms as well - but differs from the Monera kingdom in that it consists of eukaryotes.
Chordata
Binomial
Protista
Seven
15. 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.
Dinosaurs
Triassic
Monera
Sexually
16. _______________ is that branch of biology dealing with the identification and naming of organisms.
Binomial
Environment
Taxonomy
Fossil
17. Almost all _________ organisms are either plants or animals.
Macroscopic.
Increase
Somatic
Change
18. A ____________ tree is a graphical means to depict the evolutionary relationships of a group of organisms.
Sexually
Phylogenetic
Natural selection
Finches
19. About 1.8 million years ago - early Homo gave rise to _______ ________ - the species thought to have been ancestral to our own.
Interbreed
Connecting links
Hardy-Weinberg
Homo erectus
20. 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.
Africa
Hardy-Weinberg
Code
Genetic drift
21. 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.
Function
Mass
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
Chance
22. Homo erectus was the first hominid to use ___________ - and have social structures for food gathering.
Biodiversity
Phylogenetic
Fire
Chance
23. Except for the tail fins - whales greatly resemble fish in outline - but are instead descended from four-legged land ___________.
Creationism
Mammals.
Chordata
Genetic
24. Charles Darwin published a book The Origin of Species in the year 1859. He proposed that the new species came about by a process called ___________ __________.
Hunter-gatherer
Balanced
Sickle Cell
Natural selection
25. Homology has to be distinguished from ___________; for instance - the wings of insects and the wings of birds are analogous but not homologous.
Kingdom
Fungi
Genus
Analogy
26. The early stages of development of the ___________ of fish - salamander - tortoise - hen and man show remarkable similarity.
Homologous
Beneficial
Embryos
Monera
27. 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
Homologous
Mammals.
Natural selection
28. 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.
Genus
Homo
Seven
Interbreed
29. There are at least ___________ of animals. Humans are members of the phylum Chordata.
Baseline
Chordata
33 phyla
Homo erectus
30. 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.
Environmental
Taxonomy
Out-of-Africa
Finches
31. __________ 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.
Chance
Natural selection
Neanderthals
32. 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.
Homo
New World
Kingdom
Elongation
33. 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.
Triassic
Sexually
Genetic
Interbreed
34. 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
Change
Evolution
Code
35. _____________ 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.
Primates
Analogy
Mutations
Out-of-Africa
36. Heritable variations are called _____________ variations. Such variations arising from changes in DNA are passed on within families and to the offspring from the parents.
New World
Genetic
Sexually
Protoplasm
37. A Hardy-Weinberg equilibrium provides a ___________ by which to judge whether evolution has occurred.
Monera
Allele
Bipedal
Baseline
38. _____________ struggle takes place between the individuals of different species.
Elongation
Intraspecific
Interspecific
Macroscopic.
39. Members of the phylum _____________ have soft - unsegmented bodies that are usually - but not always - enclosed in hard shells.
Mollusca
Homologous
Homology
Evolution
40. 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.
Homologous
Taxonomy
Beneficial
Increase
41. _____________ is the accumulation of small changes in a gene pool over a relatively short period.
Intraspecific
Microevolution
Connecting links
Finches
42. 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.
Seven
Founder.
Mutations
Adaptive radiation
43. _____________ is the end of a particular evolutionary line - the end of a species - a family - or a larger group of organisms.
Allele
Finches
Extinction
DNA
44. 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.
Cold
Homologous
Elongation
Bipedal
45. When carriers have advantages that allow a detrimental allele to persist in a population - ______________ polymorphism is at work.
Fossil
Balanced
Struggle
Hardy-Weinberg
46. 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
Phylogenetic
New World
Out-of-Africa
Environment
47. _________ ______ 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
Sympatric
Chordata
Creationism
48. 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.
Out-of-Africa
Evolved
Homo
Genetic drift
49. 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
Genetic
Balanced
Marsupial. All the marsupials in present day Australia would have evolved from one common ancestor. Kangaroos
50. The study of ____________ ____________ supports the claim of a common origin of organisms.
Monera
Comparative anatomy.
Interspecific
Microevolution