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Intro to Biology Straighterline exam questions and answers.
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Intro to Biology Straighterline exam questions and answers.
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Intro to BiologyStraighterline exam
questions and answers
Organs are composed of tissues, which are composed of cells. This is an
example of which characteristic of life? - answer Living things have levels
of hierarchical organization.
Nutrient molecules are used to build cellular structures or for energy. This
best represents which characteristic of life? - answer Living things
acquire materials and energy from the environment.
The smallest unit that has all of the characteristics of life is the - answer
cell.
The blueprints for structural organization and metabolism are contained
in____, and the offspring receive copies of these instructions___. - answer
DNA; from the parent
,If a new anti-cancer drug is found to be effective in initial tests with mice,
what might researchers conclude? - answer The drug is effective in the
mouse model; it must still be tested in humans.
True or false? Science technology is a basis for all ethical or moral
decisions. - answer False
True or false? Science technology has brought about life-improving
discoveries, such as antibiotics. - answer True
True or false? Science technology helps us to understand the causes of
cancer. - answer True
True or false? Science technology may ease the feeding of the world
population by producing new plant strains. - answer True
True or false? Scientific experimentation may make use of a model instead
of an actual subject. - answer True
Technology is the______. - answer application of scientific knowledge for
a practical purpose.
Which of the following is a potential consequence if people stop using
technology in the agriculture industry?
a) There could be a significant decrease in the amount of food produced.
,b) There would be a collapse of many of the terrestrial ecosystems on
Earth.
c) The extinction of the top level species that reside in the communities
around the agricultural land.
d) The amount of food produced would increase.
e) None of these consequences will occur if people stop using technology
in the agriculture industry. - answer a) There could be significant decrease
in the amount of food produced.
Corn belongs to the kingdom... - answer Plantae
You have discovered a previously unknown organism. It is multicellular,
with a filamentous form, and absorbs food from its environment. Upon
microscopic examination, you see that the cells have nuclei. How would
you classify this organism? - answer kingdom Fungi
Which domain contains organisms that are adapted to life in harsh
environments? - answer domain Archaea
Which of the following is one of the domains of life?
a) Animalia
b) Eukarya
c) Molds
d) Protista
e) Fungi - answer b) Eukarya
, Which classification category contains the closest related group of
organisms? - answer genus
low hemoglobin levels despite high elevation in Tibetan populations over
generations is an example of ______ - answer natural selection at work in
humans
Which level of biological organization is composed of several tissues? -
answer organ
A physician specializes in surgery involving the following group of organs:
mouth, esophagus, stomach, and intestines. Overall, what is the highest
level of organization that this physician is specialized in? - answer organ
system
When comparing energy and chemicals in an ecosystem how many times
do chemicals and energy flow through? - answer chemicals cycle over
and over again, but energy flows through once
All the organisms of various species living within a given area constitute a
- answer community.
True or false? Chemicals are recycled in an ecosystem. - answer True
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