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Test your basic knowledge |
Honors Freshman Science
Start Test
Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
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.
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. The global movement of nitrogen between the abiotic environment and organisms
quaternary structure
style
dipeptide
nitrogen cycle
2. Original cell that forms egg
megasporocyte
keystone species
cryptic coloration
termination sequence
3. LH-like hormone produced by the placenta that maintains the corpus luteum
behavior
density independent factor
Beta human chorion gonadotropic
mutualism
4. The passage of energy in a one-way direction through an ecosystem
concentration gradient
energy flow
termination sequence
biogenesis
5. One extreme is bad and the other is good
microtubule
RNA
logistic population growth
directional selection
6. Aka temperate deciduous forest & broadleaf trees
epididymis
oxytocin
circadian rhythms
temperate forest
7. The enzyme that makes RNA and unzips the DNA for transcription
community
hydrologic cycle
hybrid
RNA polymerase
8. Unfertilized egg develops into a reproducing haploid animal that is capable of reproducing using a different process to make gametes
behavioral (sexual) isolation
parthenogenesis
photoperiodism
urethra
9. A nucleic acid polymer consisting of nucleotide subunits that can associate by complementary base paining with the single-strand DNA template
polypetide
classical conditioning
clumped dispersion
RNA
10. An individual of unknown genotype is crossed with a homozygous recessive individual
prophase
adaption
test cross
population dynamics
11. Abstinence during ovulation period
density dependent factor
rhythm method
chloroplast
anther
12. Holds the ovules
competitive exclusion principle
ovary
cyclin
intraspecific competition
13. A link formed when three or more amino acids combine
tropic response
homologous chromosomes
ecosystem management
polypetide
14. New genetically identical 'self' grows on the side and then breaks off
environmental science
natality
budding
urethra
15. Involves mitosis and cytokinesis
food chain
Batesian mimicry
M phase
glycogen
16. Active at nigh
concentration gradient
oviporous
nocturnal
autotroph
17. Makes up the cytoskeleton
coevolution
microtubule
taiga
complementary
18. Where seminiferous tubules are found & where testosterone is made
genetic code
phagocytosis
translation
testes
19. When the animal must do something to gain a reward or to avoid punishment
operant conditioning
function group
phagocytosis
cotyledon
20. The time between mitosis and the S phase & when the cell grows and performs its function
food web
umbilical cord
G1 phase
ovary
21. Things that eat the primary consumers & third lowest trophic level
fluid mosaic model
secondary consumers
zygote
contact inhibition
22. Any environmental factor that affects the size of a population but isn't influences by changes in population density & usually abiotic factors
cell theory
density independent factor
abiogenesis
hydrocarbon
23. An evolutionary modification that improves the chances of survival and reproductive success in a given environment
oviduct
are selection populations
adaption
heredity
24. A transitional zone where two or more communities meets & contains all or most of the ecological niches of the adjacent communities as well as some that are unique to the ecotone
ecotone
stroma
biogenesis
aposematic coloration
25. Contains two monosaccharide rings joined by a ether link
disaccharide
antrhopomorphic
intrasexual selection
heredity
26. The graph of the number of surviving individuals against age (birth to maximum age)
survivorship curve
fat
organic compound
DNA helicase
27. A cooperative view of the community that stresses interactions between different species
plasmolysis
organismic model
biological magnification
niche
28. When individuals in a population are spaced throughout an area in a way that is unrelated to where other are & the least common type of dispersion
random dispersion
comminity
spherical
filament
29. When natural selection favors individuals of each species that avoid or reduce among coexisting species as a result of each species' niche differing from the others in one or more ways & reducing competition
fitness
facilitated diffusion
cytoskeleton
resource partitioning
30. Spiral shaped prokaryotic cells
mitochondria
spirillum
secondary structure
comminity
31. The enzyme that takes out all of the introns & leaving only the exons
bottom up process
ribosome
snRNP
facilitation
32. Species that show repetitive reproductive cycles
pseudopod
iteroparous
crossing over
endoplasmic reticulum
33. Leaves right around the base of the flower that contains the flower
sepal
codon
mitosis
controlled burning
34. Regulates the ecosystem function by nutrient cycling and by availability of other resources
tropic response
chitin
bottom up process
embryo sac
35. Where chromosomes are attached to spindle fibers
coevolution
kinetechore
Punnett square
nocturnal
36. When the heterozygote has a phenotype intermediate between those of its two parents
decomposers
termination sequence
energy flow
incomplete dominance
37. Proposes that simple prokaryotic organisms began living in symbiotic relationships that eventually became obligatory (necessary) as one cell engulfed the other
savanna
ethylene
producers
endosymbiotic theory
38. The potential ecological niche of a species
Okazaki fragment
acrosome
fundamental niche
semiconservative replication
39. A fatty acid that contains the maximum possible number of hydrogens
saturated fatty acid
isotonic
telophase
species diversity
40. Reproductive successfulness
intrasexual selection
fitness
sodium potassium pump
founder effect
41. Stores water in plants
biological organization
seasonal isolation
water vacuole
protein channel
42. Lays down an RNA primer that allows the DNA polymerase to attach to the DNA strand
cytokinesis
hormone
RNA primer
primary structure
43. Spacing
ester linkage
dominant species
logistic population growth
dispersion
44. The study of heredity
genetics
endosperm
crossing over
homozygous
45. The structure in the mitochondria
cryptic coloration
facilitated diffusion
cristae
condom
46. A mutation in which the wrong base it transcribed
people overpopulation
triaclyglycerol molecule
hydrologic cycle
base substitution mutation
47. Aka scramble competition & all the members of the population have a generally equal amount of the resources
FSH
saturated fatty acid
dominant species
exploitation competition
48. Stable relationships that ensure cooperative behavior in mating and the rearing of the young
Okazaki fragment
food chain
carbon cycle
pair bonds
49. Gases act like a blanket and hold heat in the atmosphere
greenhouse effect
hypothalamus
negative tropic response
megaspore
50. Chromosomes other than sex chromosomes
autosome
haploid
self fertilization
learning
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