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PWC EOC STUDY GUIDE QUESTIONS WITH ALL CORRECT ANSWERS!!
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PWC EOC STUDY GUIDE QUESTIONS WITH ALL CORRECT ANSWERS!!
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Name: Score:393 Multiple choice questions
Term 1 of 393
The function of the cell membrane is to regulate what enters and leaves the cell we can also call
it?
cellular respiration
impermeable
freely permeable
selectively permeable
Term 2 of 393
Theodosius Dobzhansky discovered that successful species tend to have a wide variety of genes
that do not appear to be useful to the species in its present environment. What did this discovery
help explain about genetics and the changes that occur in a species over time?
Environments with more organisms tend to have more successful species.
Species with greater genetic diversity adapt more easily to changing environments.
Changing environments prevent species from adapting and surviving.
Species in a stable environment are more resistant to a changing environment.
Term 3 of 393
Sexual reproduction is vital to the propagation of the human race. Which of the following
sequences represents the correct order of events in the formation of a human fetus?
Zygote → Blastocyst → Embryo → Fertilization
Fertilization → Zygote → Blastocyst → Embryo
Blastocyst → Embryo → Differentiation → Zygote
Fertilization → Growth → Differentiation → Zygote
,Term 4 of 393
What are DNA and RNA composed of?
monomers called nucleotides
covelent bonds, which forms a polynucleotide
code for proteins and rna
single polypeptide chains
Term 5 of 393
What is the human embryo called after the eighth week of development?
a zygote
an infant
a fetus
a morula
Term 6 of 393
Which statement is true about the process of mitosis? Choose the correct answer.
The process occurs only in plants.
The process occurs only in animals.
The process occurs in every type of organism.
The process occurs only in multicellular organisms.
,Term 7 of 393
Darwin's observations of finches indicated descent with _____. Choose the correct answer.
convergence
modification in bills
no change in species
inheritance of large bills
Term 8 of 393
How would computer models help a scientist to expand biological research? Choose the correct
answer.
They help scientists design better experiments.
They allow the use of human experimental subjects.
They give scientists the ability to observe molecules directly.
They simulate complex biological systems that cannot be studied directly.
Term 9 of 393
As an environment changes, some organisms have a higher fitness than others in the new
environment. This can lead to __________. Choose the correct answer.
lower genetic variation in the offspring of organisms with higher fitness
greater genetic variation in the offspring of organisms with lower fitness
greater reproductive rates and survivorship of those organisms with lower fitness
greater reproductive rates and survivorship of those organisms with higher fitness
, Term 10 of 393
Water makes up approximately 60% of the human body and plays a vital role in regulating body
temperature. Which property of water makes it good at regulating temperature?
Water is a good solvent.
Water exhibits strong cohesion.
Water has an unusual crystalline structure.
Water has a high capacity for heat.
Term 11 of 393
Many scientific discoveries have contributed to the explanation of how life began on Earth. Which
of the following was NOT used to develop this scientific theory?
Oparin's "primordial soup" theory was tested by Miller and Urey by passing sparks through
a mixture of gases to represent lightning and within a week, several simple organic
molecules had formed.
Louis Pasteur disproved spontaneous generation by showing that bacteria will not grow on
meat in a sterilized environment.
Scientists supported Lynn Margulis' theory that eukaryotic organelles such as mitochondria
and chloroplasts originated as prokaryotes that lived inside other, larger prokaryotic cells.
Darwin's argument that vestigial structures are evidence that evolution has occurred.
Term 12 of 393
The common brushtail possum is a marsupial native to Australia. This possum was introduced to
New Zealand where it had no natural predators and had an abundant food supply. Which of these
likely occurred a few years after the introduction of this possum to New Zealand?
The possums became extinct.
The possums developed shorter life spans.
The possum population grew to a larger size.
The possum population evolved into a different species.
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