Dichotomous Keys Question Preview (ID: 41203)
Texas 7.11ABC.
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When scientists first explored rainforests and began cataloging the vast numbers of organisms, descriptions and drawings were recorded in journals. Which tool would be most helpful in classifying the organisms?
a) binoculars
b) microscope
c) graph
d) dichotomous key
A group of students examines preserved specimens in order to classify each organism based on a dichotomous key. What equipment would help students complete this investigation?
a) computer
b) meter stick
c) hand lens
d) collecting net
What question might be the focus of a dichotomous key investigation?
a) What are similarities and differences between organisms?
b) Do all insects have wings?
c) When should observations be taken during an investigation?
d) How are observations collected by scientists?
A student compares and labels insects by examining body structures. Which tool will help the student identify each insect?
a) anemometer
b) psychrometer
c) dichotomous key
d) spectroscope
A characteristic of an organism which can be either genetic or acquired is a
a) trait
b) mutation
c) variation
d) adaptation
The process where people choose which organisms to breed in order to get specific desired traits is called
a) Natural selection
b) Selective breeding
c) Photosynthesis
d) Respiration
The smallest, most specific level of classifying organisms is the
a) kingdom
b) phylum
c) genus
d) species
The largest, broadest rank in classifying organisms is called
a) kingdom
b) phylum
c) genus
d) species
The two word naming system that includes Genus and species is called what?
a) a dichotomous key
b) binomial nomenclature
c) natural selection
d) selective breeding
Scientists use which languages when classifying and naming organisms?
a) Latin and Greek
b) English and Spanish
c) Italian and Greek
d) Latin and Spanish
What is taxonomy?
a) a tool used by scientists to identify organisms based on a series of questions
b) a way to predict the outcomes of offspring
c) the branch of science that deals with names and classifies organisms
d) process by which organisms with favorable traits produce successful offspring
Dichotomous keys have ____ choices at each branch?
a) 1
b) 2
c) 3
d) 4
Scientists use dichotomous keys to
a) predict the outcomes of offspring
b) determine if organisms reproduce sexually or asexually
c) identify organisms
d) conduct experiments
Dichotomous keys are NOT based on
a) Physical characteristics
b) Observable traits
c) Structural adaptations
d) stimuli and response
Which tool would NOT be helpful in the identification of characteristics of organisms n a dichotomous key investigation?
a) microscope
b) metric ruler
c) hand lens
d) telescope
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