Life on Earth
Chapter 1
An Introduction to Life on Earth
Self-Quiz
Choose the answer that best describes the scientific method.
observation, hypothesis, experiment, absolute proof
guess, hypothesis, experiment, conclusion
observation, hypothesis, experiment, conclusion
hypothesis, experiment, observation, conclusion
experiment, observation, hypothesis, conclusion
Which of the following are characteristics of living things?
They reproduce.
They respond to stimuli.
They are complex and organized.
They acquire energy.
all of the above
The three natural processes that form the basis for evolution are
adaptation, natural selection, and inheritance
predation, genetic variation, and natural selection
mutation, genetic variation, and adaptation
fossils, natural selection, and adaptation
genetic variation, inheritance, and natural selection
Which cell listed is considered to be most primitive in its evolution?
protistan
prokaryotic
autotrophic
yeast
eukaryotic
Which of the following is not a kingdom?
Animalia
Fungi
Monera
Insecta
Protista
Living organisms are characterized by which of the following?
organic structure
responsiveness to stimuli
maintenance of homeostasis
b and c are correct.
a, b, and c are correct.
The organization of life is defined as follows:
Organisms are neat and tidy compared to non-living matter.
Organisms are simple in structure, containing a few compounds repeated over and over.
An organism's DNA is arranged in strands.
Organisms contain thousands of different compounds arranged in specific ways to form cells.
Actually, only some living things are organized; many are not.
In reproduction, which of the following must occur?
passing DNA from parent to offspring
two parents
copulation
sperm and egg
all of these
In an organism, evolution is defined as a change from pre-existing life forms to modern-day forms. What actually changed?
rate of reproduction
ability of organisms to cope with external stimulus
energy and nutrition demands of the organisms
genetic makeup of the species
the species' physical appearance
Mutations are crucial to the survival of a species because mutations
increase newborn survival
are the source of genetic variation
reduce the need for sexual selection
support stable population growth rates
eliminate the weak from the population
A scientist collects pond water from a local fishing hole. She filters out the different organisms into separate jars. She adds no food to the water, but one kind of organism is still alive long after all others have died. That species is probably
homeostatic
heterotrophic
microtrophic
hydrophilic
autotrophic
Which of the following is a scientific explanation that is tentative and requires more investigation?
theory
fact
control
hypothesis
observation
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