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Test your basic knowledge |
SAT Subject Test: Biology
Start Test
Study First
Subjects
:
sat
,
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 organism that is heterozygous for two different traits
pheromone
adrenocorticotrophic hormone
dihybrid
seminal fluid
2. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon
codominant
steroid
gray matter
sinus
3. A structure in animal cells containing centrioles from which the spindle fibers develop
planaria
centrosome
neuron
anaerobe
4. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response
spiracle
conditioning
vagus nerve
exoskeleton
5. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)
sinus
urea
legume
nucleotide
6. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes
pleural cavity
thymus
pineal body
morula
7. Movement of amoeba
pseudopod
homologous
peristalsis
ingestion
8. A transmitter substance released from the axons of nerve cells at the synapse
pharynx
acetylcholine
osmosis
crossing over
9. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis
villus
thoracic duct
legume
larva
10. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus
levels of structure
RNA
ilium
endoplasm
11. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm
tundra
nerve net
cortisone
parasympathetic
12. The central tissue of a stem - used for food storage
systole
pith
host
pairing
13. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)
pyloric valve
pith
diploid
carapace
14. An organ centrally involved in the human digestive system
tissue
thryoxin
alimentary canal
ADH (vassopressin)
15. The physical appearance or makeup of an individual - as opposed to its genetic makeup
Annelida
nitrogen cycle
biome
phenotype
16. A plant growth hormone
auxin
codominant
lens
macula
17. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems
Golgi apparatus
stoma
autonomic nervous system
peptide
18. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male
sex chromosome
photolysis
osmoregulation
mucosa
19. The recycling of carbon from decaying organisms for use in future generations
reticulum
atrium
carbon cycle
chromatid
20. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast
synapsis
granum
recessive
Mendelian laws
21. The ability of certain animals to regrow missing body parts
cell wall
medusa
legume
regeneration
22. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes
progesterone
vitamin
urea
amnion
23. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers
nerve cord
endoderm
diploid
angiosperm
24. A metabolic stage between mitoses in which genetic material is reproduced
embolus
peripheral nervous system
corpus callosum
interphase
25. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis
cytokinesis
integument
anther
climax community
26. The process of breaking down large organic molecules into smaller ones
diffusion
cation
passive immunity
digestion
27. The female gonad in animals; the base of the pistil in plants
adaptive radiation
lymphocyte
ovary
nerve net
28. The ability to respond to a stimulus
diencephalon
irritability
adrenal cortex
central nervous system
29. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation
crossing over
cerebrum
translocation
pseudopod
30. The enzyme that acts upon lactose
fermentation
lacteal
lactase
genetic drift
31. A relationship in which one organism benefits at the expense of another
pepsin
parasitism
trilobite
frame shift mutation
32. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities
thalamus
RNA
carapace
Bowman's capsule
33. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron
gastrula
differentation
incomplete dominance
pathogen
34. The veins that carry blood from the digestive organs to the liver
Loop of Henle
inversion
hepatic portal system
frame shift mutation
35. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis
epinephrine
hepatic portal system
insulin
nondisjunction
36. An enzyme that acts upon sucrose
frame shift mutation
sucrase
cortex
Calvin cycle
37. A resistance to disease developed through the immune system
immunity
flagellate
mutagenic agent
RNA
38. The recycling of nitrogen from decaying organism for use in future generations
aortic arch
monohybrid
nitrogen cycle
synapsis
39. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait
Rh factor
spiracle
synaptic terminal
test cross
40. A thyroid deficiency that results in stunted growth and feeblemindedness
nitrogen cycle
cretinism
adrenocorticotrophic hormone
population
41. A mitotic stage in which nuclei reform and nuclear membrane reappears
antigen
retina
endocrine gland
telophase
42. An organic cofactor required for enzyme activity
genotype
pairing
coenzyme
insulin
43. A symbol that denotes the relative concentration of hydrogen ions in a solution
pH
Porifera
epithelium
disjunction
44. A reproductive cell that is capable of developing directly into an adult
immunity
spore
exoskeleton
sex linkage
45. A substance that prevents appreciable changes in pH in solutions to which small quantities of acids or bases are added
white matter
smooth muscle
synergistic
buffer
46. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli
chemotropism
hermaphrodite
biotic
cleavage
47. An enzyme from the pancreas that digests proteins in the small intestine
osmosis
Arachnida
trypsin
Eustachian tube
48. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen
pedigree
F1
atrium
anaerobic
49. A mucus-secreting membrane
phylum
mucosa
digestion
disjunction
50. A substance that participates in the clotting of blood in vertebrates
thrombin
synapsis
pith
phylum