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WorksheetsAP Bio chapter 1 Evolution, themes, &scientific inquiry
Total questions: 22
Worksheet time: 25mins
Which of the following statements is true regarding the complexity of biological systems?
An understanding of the interactions between different components within a living system is
an approach towards understanding reductionism.
Knowing the function of a component of a living system can provide insights into the structure and organization of the living system.
Understanding the chemical structure of DNA reveals how it directs the functioning of a
living cell.
An ecosystem displays complex properties of the biotic component only.
Which of the following order is correct in terms of the hierarchy of the organization?
Ecosystem → Biosphere → Population → Community → Organism
Biosphere → Ecosystem → Population → Community → Organism
Ecosystem → Community → Biosphere → Population → Organism
Biosphere → Ecosystem →Community → Population → Organism
When your body temperature rises on a hot day, the neural and hormonal mechanisms activate sweating. Evaporation of sweat leads to cooling of the body surface. This is an example of
________.
positive feedback regulation
negative feedback regulation
chemical cycling
emergent properties
Characters are transmitted from parents to offspring. ________ are the units of inheritance.
Genes
Proteins
RNA
DNA
As letters are to English language, ________ is/are to genetic information.
proteins
nucleotides
DNA double helix
A and B
The process by which the information in a gene directs the synthesis of a protein is called
________.
gene expression
replication
post translation modification
cloning
Which of the following statements is true?
mRNA is the only type of RNA found in the living system
All forms of life employ the same genetic code
A typical human liver cell has one set of chromosomes
Organisms interact but do not affect their environment
Plants convert ________.
chemical energy to mechanical energy.
sunlight to mechanical energy.
sunlight to chemical energy.
mechanical energy to chemical energy.
Which branch of biology is concerned with the naming and classifying of organisms?
informatics
taxonomy
genomics
evolution
depicts that Archaea is closer to Bacteria than Eukarya
depicts that Eukarya is closer to Bacteria than Archaea
includes unicellular and some forms of multicellular life, but not complex animals and plants
includes every single life form on this earth
"A" is ________; "B" is ________.
the most recent species to evolve on Earth; an ancestor of group "A"
the most recent species to evolve on Earth; the last common ancestor of Archaea and Eukarya
the common ancestor of all life; the common ancestor of Bacteria and Archaea
the common ancestor of all life; the last common ancestor of Archaea and Eukarya
You are suffering from Streptococcus throat infection. You share the following with the
bacteria that is responsible for your condition.
You both belong to the same domain.
You both are made up of cells.
You both have genetic material in your nucleus.
You and Streptococcus have nothing in common.
Which of the following is true of natural selection?
It requires genetic variation.
It results in descent with modification.
It involves differential reproductive success.
It requires genetic variation, results in descent with modification, and involves differential reproductive success.
Which of the following is not one of Charles Darwin's observations?
Individuals in a population vary in their traits.
B) Many of the traits in an individual are heritable.
A population avoids competition by producing only as many offspring as can successfully reproduce on their own.
Species generally are adapted to their environments.
The evolution of one species into two or more species as a result of different populations becoming reproductively isolated from each other is best termed as ________.
adaptive radiation
creationism
natural selection
prototype
Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While
studying these creatures, you notice that males with longer hair get more opportunities to mate
and father more offspring. To test the hypothesis that having longer hair is adaptive in these
males, you should ________.
test whether other traits in these males are also adaptive
look for evidence of hair in ancestors of tamarins
determine if hair length is heritable
test whether males with shaved heads are still able to mate
Following a scientific method, which of the following is the correct order of steps?
Observation → Analysis → Hypothesis → Conclusion → Communicate results → Experiment
Observation → Hypothesis → Experiment → Communicate results → Analysis → Conclusion
Experiment → Hypothesis → Observation → Analysis → Conclusion → Communicate results
Observation → Hypothesis → Experiment → Analysis → Conclusion → Communicate results
Which of the following statements best distinguishes hypotheses from theories in science?
Theories are hypotheses that have been proved.
Hypotheses are guesses; theories are correct answers.
Hypotheses usually are relatively narrow in scope; theories have broad explanatory power.
Theories are proved true; hypotheses are often contradicted by experimental results.
Which one of the following is not a plausible hypothesis that can be tested in this experiment?
The longer day lengths of summer trigger the development of twig-like caterpillars.
Differences in air pressure, due to elevation, trigger the development of different types of caterpillars.
Differences in diet trigger the development of different types of caterpillars.
The differences are genetic. A female will either produce all flowerlike caterpillars or all
twig-like caterpillars.
Recall that eggs from the same female were exposed to each of the eight treatments used. This
aspect of the experimental design tested which of the following hypotheses?
A) The longer day lengths of summer trigger the development of twig-like caterpillars.
B) Differences in air pressure, due to elevation, trigger the development of different types of caterpillars.
C) Differences in diet trigger the development of different types of caterpillars.
D) The differences are genetic. A female will either produce all flowerlike caterpillars or all twig-like caterpillars.
Describes the logic of scientific inquiry. (30-50 words)
A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has almost 21,000 genes. About 1,000 of these genes are present in both types of cells. Based on your understanding of evolution, explain how such different organisms could have this same subset of 1,000 genes. What sorts of functions might these shared genes have?
