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Test your basic knowledge |
CLEP Biology
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. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.
Paleozoic era
Pi
Mesozoic era
T Cells
2. Controls balance and muscle coordination
DNA produces particular genetic traits through
Non-protein
Cerebellum
Stomach secretions
3. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.
Cnidaria
Imprinting
The community
Pi
4. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.
The evolution leading to Homo Sapiens...
Porifera
The community
Biosphere
5. Must be present for photosynthesis to occur - it is not used up in the process.
A hydrogen bond
Angiosperms
Chlorophyll
Carrying capacity
6. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh
Kingdom Plantae
Circadian rhythms
Isotonic Conditions
DNA produces particular genetic traits through
7. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.
Porifera
Will increase the reaction rate
pathogenic
Differential reproduction
8. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a
The cell's 'powerhouses'
The evolution leading to Homo Sapiens...
Cnidaria
The Nitrogen cycle
9. Inorganic phosphate
Altruism
Common elements found in proteins
An enzyme
Pi
10. Is the sugar that lactase acts upon.
The nucleus
Adenine
Lactose
The habitat of an organism includes
11. Is the organelle where cellular reproductive processes occur.
The synthesis of ATP molecules to store energy is an example of
The nucleus
Phloem tissue
R-selection
12. A hydrogen bond involves the ________________ and can be easily broken.
Attraction of atoms of different polarity
Midbrain
Arthropoda
Electron Transfer System (ETS)
13. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.
The Cell Theory
Alveoli
Genome
Free ribosomes
14. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t
The pituitary gland
Mesoderm
Forebrain
Niche
15. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.
Destroy most enzymes
Pharynx
Hydrolysis
Gymnosperms
16. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.
Germ layers
Filtered by the liver
Mature sporophyte
R-selection
17. Contains many genes and is a structure comprised of linear DNA and associated proteins.
Mesozoic era
Ribonucleic acid
Interphase
Chromosome
18. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.
T Cells
Chlorophyll
A prosthetic group
Silicon
19. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.
Destroy most enzymes
The Nitrogen cycle
Kingdom Animalia
Vitamin C
20. Cleave strands of DNA segments at certain sites.
Cuticle
Precambrian period
Restriction enzymes
Ribonucleic acid
21. Is the outermost of the three main layers of an embryo.
The pancreas
DNA produces particular genetic traits through
Ectoderm tissue
The cell membrane
22. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.
Successful reproduction
Balance
Lymphocytes
The nucleus
23. The vocal cords are found in the larynx.
Larynx
T Cells
Gymnosperms
Spiracles
24. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).
Kingdom Animalia
Gregor Medel
Cell walls
Hydrolysis
25. The transfer of electrons.
Ionic bonds involve
Epidermal tissue
parasitic
A catalyst
26. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.
Biosphere
Filtered by the liver
A gene is
Non-protein
27. Is a packet of digestive enzymes that destroy cellular wastes.
A lysosome
The cuticle
Cuticle
An enzyme
28. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.
Silicon
Tundra
Balance
Habituation
29. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.
Trachea
pathogenic
The theory of punctuated equilibrium
Plasmodesmata
30. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.
Iisotonic state
Gnathostomata
Biosphere
Cerebrum
31. Breaking down
Catabolism
Electron Transfer System (ETS)
The pancreas
Habitat
32. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.
Protista
Allopatric speciation
Epidermal tissue
About five million years ago...
33. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.
Protista
Restriction enzymes
Vitamins
T Cells
34. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.
Genetic imprinting
Gametocide
Gnathostomata
The cell's 'powerhouses'
35. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.
Kingdom Protista
parasitic
A sex linked recessive disease
Isotonic Conditions
36. Mitochondria - they constitute the center of cellular respiration.
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37. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.
Kingdom Plantae
R-selection
Mature sporophyte
The synthesis of ATP molecules to store energy is an example of
38. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).
Ecological niches open up
Gymnosperms
An inhibitor
Simple fruits
39. Is a coenzyme required in the synthesis of collagen.
Vitamin C
Filtered by the liver
Photolysis is a reaction of photosynthesis where
Gymnosperms
40. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.
Porifera
Phototropism
Trachea
Plasmodesmata
41. Covers and protects the leaf.
Cuticle
Aggregate fruit
The Cambrian Period
pathogenic
42. Are organic cofactors or coenzymes that are required by some enzymatic reactions.
Prothallus
Vitamins
Recycled environmental factors
Natality
43. Is the process that releases energy for use by the cell.
Saprophytic
Cellular Respiration
Attraction of atoms of different polarity
Fixed Action Pattern (FAP)
44. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.
Habituation
A sudden change in the amount of extracellular fluid will be corrected by events following the release of substances from this organ.
Centrioles
A prosthetic group
45. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.
Desert
So it can be used over and over again.
Phosphorous gas
Annelida
46. The sharp boundary of an ecosystem.
A gene is
Ecotone
The primary role of DNA in the cell
Phototropism
47. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.
Habitat
Nucleotides
Ecological niches open up
Scurvy
48. Is the outermost layer of cells of the stem.
Forebrain
Epidermal tissue
Aves
An enzyme
49. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).
Biosphere
Genetic imprinting
Anabolsim
Ecological niches open up
50. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).
Genetic imprinting
Scurvy
Share electrons
Ionic bonds involve