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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. A ring-shaped muscle that is capable of closing a tubular opening by constriction
thalamus
parthenogenesis
follicle
sphincter
2. A lateral region of the forebrain
thalamus
vacuole
Loop of Henle
vestigial organ
3. A duct through which the urine passes from the bladder to the outside
urethra
lipase
pH
axon
4. A plant that lives on another plant mensalistically
immunity
epiphyte
central nervous system
chromatid
5. A fluid-filled sensory apparatus that aids balance and hearing
RNA
flagellum
inner ear
allantois
6. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation
alternation of generations
legume
mutation
anaphase
7. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs
endoderm
rod
acetylcholine
test cross
8. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")
Calvin cycle
sphincter
uterus
metaphase
9. The uppermost portion of pistil upon which pollen grains alight
systole
stigma
fibrinogen
pleural cavity
10. The fusion of sperm and the egg to produce a zygote
genus
fertilization
taxonomy
diffusion
11. The thin-walled anterior chamber of the heart (also called the auricle)
dendrite
acetylcholine
atrium
glottis
12. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end
metabolism
ganglion
anaphase
parthenogenesis
13. A stalklike or elongated body part - usually pointed at one end
blastula
fertilization
style
mesoderm
14. Pertaining to a type of gland that releases its secretion through a duct
levels of structure
exocrine
plasmodium
uracil
15. A compact linear organization of nerve tissues with ganglia in the CNS
nerve cord
absorption
crossing over
metamorphosis
16. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient
asexual reproduction
substrate
carapace
Loop of Henle
17. 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
nitrogen cycle
pulmonary
nucleotide
RNA
18. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)
chromosome
planaria
cytosine
autonomic nervous system
19. A mass of cells that have similar structures and perform similar functions
tissue
phenotype
digestion
thermoregulation
20. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to
hypertonic
colon
monosaccharide
epidermis
21. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence
chyme
niche
ureter
white matter
22. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)
ilium
follicle
nictitating membrane
cross-pollination
23. The space between the mesodermal layers that forms the body cavity of some animal phyla
nephron
diastole
coelom
endocrine gland
24. A metabolic stage between mitoses in which genetic material is reproduced
stoma
immunity
interphase
translation
25. A nerve fiber
prothrombin
chromosome
axon
ethanol fermentation
26. A behavioral or biological change that enables an organism to adjust to its environment
thyroid
adaptation
littoral zone
autonomic nervous system
27. The ability to respond to a stimulus
irritability
duodenum
prophase
sex chromosome
28. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment
autosome
exoskeleton
sex linkage
climax community
29. The process of forming the sperm cells from primary spermatocytes
spermatogenesis
chemosynthesis
ventral root
macula
30. Fluid-filled structures in the inner ear that are associated with the sense of balance
semicircular canals
DNA
maltase
epiphyte
31. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)
pinocytosis
Calvin cycle
pupil
pollination
32. The contraction of the atria or ventricles of the heart
adrenaline (epinephrin)
lymph
systole
pons
33. The orderly process by which one biotic community replaces another until a climax community is established
ecological succession
ingestion
reduction
stamen
34. A cell in the retina that is sensitive to weak light
flagellate
rod
thyroid
substrate
35. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose
plasma membrane
conditioning
gill slit
carbohydrate
36. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote
chemosynthesis
nictitating membrane
passive immunity
gamete
37. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases
epinephrine
absorption
genetic code
prophase
38. A cell that divides to form two secondary spermatocytes
polysaccharide
primary spermatocyte
cleavage
isomer
39. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm
commensal
eye
nerve net
alternation of generations
40. Living - as in living organisms in the environment
wood
parthenogenesis
biotic
cerebrum
41. A hormone produced by the Islets of Langerhans in the pancreas
pupil
anther
insulin
urea
42. A thyroid deficiency that results in stunted growth and feeblemindedness
cretinism
stomach
cochlea
pathogen
43. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)
hypotonic
phylogeny
antibiotic
diastole
44. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter
hyperthyroidism
cleavage
cloaca
macula
45. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)
chemosynthesis
carapace
independent assortment
absorption
46. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough
cytochrome
guanine
epithelium
endoplasmic reticulum
47. The elimination of metabolic waster matter
immunity
excretion
cytokinesis
diencephalon
48. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes
vitamin
ventral root
DNA
ilium
49. The recycling of carbon from decaying organisms for use in future generations
respiratory center
nucleotide
carbon cycle
F1
50. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac
antigen
progesterone
dimorphism
amnion